As Mr Plinkett pointed out over a decade ago, Qui-Gon might as well have just beaten Watto up and stolen the ship part.
What I can never wrap my head around is if Qui-Gon being a dumbass is supposed to be some kind of intentional deconstruction of the Jedi, or if George is just a sloppy screenwriter with questionable ethics. The latter seems more likely, and is supported by Qui-Gon being a force ghost.
Ren faires are just an anacronism stew. Maybe some take historical accuracy seriously, but I've been to quite a few and have yet to see one that does. My local one has everything from ancient greece to steampunk Victorians. There's even a Wok themed after Imperial China where these guys would fit right in. You see more fantasy then historical costumes usually anyway.
It's just a place for nerds and weirdos to vibe, buy trinkets, drink, eat fair food, and wear cool costumes.