All other issues aside, I'd be amazed if Kickstarter even let you start a campaign, much less complete one. They could be on shaky legal ground themselves if they knowingly let you essentially plagiarize a game/game system alone, not to mention infringing on Disney's IP (which is basically financial suicide anyway).
It's pretty clear that you don't know what you're doing, legally, and it could land you, personally, in a ton of trouble. As in seized assets and cripplingly large legal bills trouble.
Your idea to create some house rules for X-wing is a decent idea. Write them, play them, post here and let us know about them.
DO. NOT. SEEK. MONEY. FOR. IT.