"Well, I'm not a wizard, but in that case it sounds like we should either try it today or wait until we're home and bring it to a specialist, does that seem reasonable?"

"That sounds reasonable to me. I defer to the two of you" (he nods at Fernando and Mateo) "as to what sort of resources he was likely to be carrying, and whether they justify the risk."

"If he was carrying a teleport scroll, that seems worth the risk of doing it now to have that as an option for an emergency need to escape.  Well... two of us would need to fit into the bag I don't think a sixth-circle's teleport is strong enough to get six people, even assuming he scribed it at maximum strength.  And if the bag isn't particularly high capacity we could use two reduce persons.  So what are the odds he had a scroll?"

"He was the sort to always have a back up plan, so he almost certainly has at least one teleport scroll, if not more.  Probably lots of other scrolls for contingencies?  Oh and he would have had at least one scroll of Malediction, you know, for, uh-"

Mateo nods to the wizard.  And if there are two scrolls of Malediction, Matero is definitely going to stop feeling the twinge of guilt.

"So I'm in favor of opening it sooner rather than later."

These seem like a nice bunch of people, but 12 or 24 days or whatever is plenty of time to accidentally forget a loosely implied offer to split the loot.