Yup, everything in this plaza is Golarion-legal for export. (They're not allowed to export the secret of how they make it, but the cloth is OK.)

Excellent. 

She picks out an opalescent white fabric that's sort of like silk but moreso, along the axes she appreciates, and buys an amount of it that people from Golarion generally wouldn't be able to afford, but: wheeee, diamonds. 

And then she is going to look for the guy with plane shift a little harder, because one arguably-practical tangent is probably enough. 

Guy with plane shift can be located! His business mostly sells hats, but he has a little board up with Plane Shift destinations written in their native languages, and one of the languages is Taldane.

Hello Lucy has a large amount of money and would like to go to Golarion please. 

...Also she will buy a hat, she's here anyway. 

He is an oversized blue-skinned humanoid with many eyes and few fingers (a Mercane) and he will confirm that he hasn't used his Plane Shift yet today! Anyone else or just her?

Sure, there are ALL THESE HATS. Discount on the plane shift if you buy a hat!

(Known hat powers: Just being waterproof and very hard to damage and holding shape very well. Disguises you with an illusion. Boosts your knowledge of monsters. Makes you resistant to wind and rain. Cold resistance and wilderness survival skills! Shapeshifting abilities! Boosts to your sailing skills, especially if you worship Besmara, popular god on Golarion!)

Does the one that's mostly just magically high-quality work if you're also wearing a headband, she is aware of the concept of item slots and she really likes her headband (she will buy the cold-resistance-and-wilderness-survival-skills one and the shapeshifting abilities one regardless of the answer). 

Hats and headbands technically do not use the same slot, and also yes!

(The cold resistance and wilderness survival one is a very comfy furry hat with earflaps that also give you sonic resistance, but, you know, can't hear as well. The shapeshifting one looks like whatever you want; it only lets you shapeshift into Medium or Small humanoids and is very popular among sentients who want hands or to fit into tight spaces and can't shapeshift themselves yet.)

"Hats and headbands don't technically use the same slot" confuses her EVEN MORE about the concept of slots than she was already confused, but okay, cool. She will buy those three and--actually also the knowledge-of-monsters one, she has less knowledge of (local) monsters than would really be ideal. 

And then she would very much like that Plane Shift. 

Pleasure doing business with her! (The knowledge-of-monsters one is a very nice deerstalker with an eye on the front flap.)

And she and her hats will appear in the middle of the Ascendant Square in Absalom, largest city in the world of Golarion! Nobody gives her a second look.

Okay. Awesome. The guy did not come with so she doesn't need to worry about being nice to him. 

Plus all the signs are in Taldane, which is nice. 

She goes looking for someplace she can plausibly find a map of "where is Ustalav from here." 

Absalom is really really big! The city is miles wide with a million people in it; the square is surrounding the Starstone Cathedral (probably the most magic thing she has seen; it is protected by a bottomless pit with three bridges over it plus a lot of Weird Magic and Unknown Other Stuff), there's cathedrals everywhere to all the gods she's heard of and a lot more but especially Iomedae, Cayden Cailean, and Norgorber (the temple to Sarenrae is a street or two away but Her sun-symbol is visable over rooftops from here) - there's so many people everywhere, it's more crammed than Axis even if the population is a lot lower, and if the crowds are a lot less polite it's still pretty impressive. 

... There are also starving beggars, many missing limbs or horrifically scarred, some children, asking for whatever passers-by can give and mostly being ignored.

Possible map locations include the headquarters of the Pathfinder Society, random temples to gods, asking people, that bookstore over there and trying to find a library.

Hoboy. Well. Horribly scarred people with missing limbs are a problem she can solve!!! 

She lights up. 

Everyone near her is immediately de-aged, healed to full physical health, and resurrected!

... This last is not actually a thing because there aren't any undead near her and the funeral parlor in funeral-parlor-possessing nearest Temple of Pharasma has many solid objects between her and it, but, if there were, they would be.

She is no longer uninteresting and now has EVERYONE's attention!

"...Does anyone know which way to Ustalav?"

"North-northwest," someone says, roughly simultaneous with:

"Thank you! Thank you! Are you a god?"

"ALL HAIL SARENRAE!"

"How did you do that?"

"- My brother, he isn't in the square -"

And a whole lot of other responses, all coming really fast on its heels.

"--I'm not a god, some guy in Hell tried to bully me into ascending but I said no," she tells the second guy. 

(She likes Sarenrae, she has no objection to Sarenrae getting points for Lucy's healing.)

"Where's your brother?" to fifth guy, and then, thinking about it, yells, "I'M GOING TO THE CHURCH OF SARENRAE AND I WON'T LEAVE FOR USTALAV FOR AT LEAST TEN MINUTES, IF YOU HAVE ANY INJURED FRIENDS AND/OR CORPSES THAT NEED FIXING." 

The second guy will react with a "what?" The "what" will be largely lost as people pray, run off, warn everyone, gather as many people as possible at the Temple of Sarenrae, and, Absalom being perpetually Absalom, attempt to pick the pockets of members of the crowd.

Lucy strides over to where she can see the holy symbol of Sarenrae over the skyline. 

"Hi. Sorry for raising a fuss," she says, when she gets there, to the first person in cleric's vestments she sees. 

The holy symbol of Sarenrae stands over a massive temple (the largest outside the Kelesh Empire) with an open-air courtyard and a fence whose symbolic gates are so symbolically always open that they have rusted that way. It advertises free healing at regular hours (with an enormous sundial with hours marked in the middle of the courtyard, so everyone can see, a construction that dates back to well before the invention of clocks), free classes (language classes to teach Kelesh with a focus on enough literacy to read the Book of Light and Truth, basic medical knowledge, and, for devotees of the goddess, ways to nonlethally subdue people for if they try to stab you), and free food at also regular hours, as well as spellcasting services. (The pavilions from which it distributes most of its free food and healing are located in the areas of the city where people are more likely to need them, but it's a temple of Sarenrae, you can't not offer people free healing.)

The first person in cleric's vestments she sees is a young woman with a complexion vaguely like de Caserta's in vestments suggesting a very very junior cleric.

"Sun shine on you!" and then - "You're the Outsider!" She'll grin with the wow-what-a-cool-person grin. "Is there anything I can do to help?"

"I'm going to hang around for a little while healing people and this seemed like a good place to do it."

"Of course! I'll go tell Bey Xerashir." She'll scurry off.

(People will show up who want to be healed! MIRACLES OF SARENRAE!)

Lucy will glow at them! Yay Sarenrae!

…Did anyone visibly believe her about the “corpses” bit?

Yup! Resurrection is a thing!

The first three or so corpses are happy to be resurrected and extremely grateful. The fourth, brought by her grieving young husband, bursts into tears and is SPECTACULARLY UNHAPPY about not being in Heaven any more.

Oops. 

Lucy will go over and apologize to her.