So I know 3.5 mechanics because of some forays into the system @ my college but I'm waaaay more familiar with Pathfinder. Would you allow someone to use Golarion for their backstory since this is Spelljammer and it's downright vast in its variety? Because I have an idea for an archaeologist half-elven arcane caster who sees a chance to find out things he never thought possible travelling the multiverse w/ the mercenaries, but the only archaeological group I can think of in a D&D-esque campaign setting is the Pathfinder Society.

Alternatively, can someone give me a campaign setting with a well-known archaeological guild that would be able to provide arcane casters with training?