This is a great idea, and it's been passed along to the gurus of the Cartel Market. I know I'd personally love to see this!
Here's my question for you guys: What character would you want to see as the Universal Crew Skill Trainer?
Maybe Camper from the KotOR series
he was a master tinker and inventor.
I think it would be fun to have a character from outside the game.
Odan-Urr or Vodo-Siosk Baas could be cool characters, both of which were associated with crafting in some capacity.
If it's an in game character...maybe Gnost Durall. Not really a crafter, but he's master of lore and such. I'd get a Gnost Durall craft statue