The idea of a short, but maybe able to continue, campaign is bearin down hard on me. I've played a lot of games but only dm-ed for irl games. But I'd love to run a Magnificent Seven riff using pathfinder rules. When it comes to classes, I'd say have a good story. I'd admit ninjas or winter witches if they had a good concept that fits in. Gunslingers obviously allowed, archetypes encouraged. Magic could exist if you explain it in genre or a fusion.
This is just an interest check. I'd have to develop it, but I want to see if there's interest first.
Caveat: race and the genre. I mean human constructs of race, and how that has shaped this country and in ways, this genre. This is a roundabout way of saying stereotypes will not get much consideration as pcs. Characters can be in-world racist, as was prevelent, but expect that to have negative karmic responce, unless we agree on an arc for your character. I'm not interested in hateful for hateful's sake.
EDIT: GOOD REFLUFFING ENCOURAGED
I am on an unexpected job hunt, which has put this on hold. Sorry.