It looks like a cool combination of Wasteland and Shadowrun. A big issue in donations is going to be the re-emergence of Gamma World's 7th edition recently, which is very similar to the concept of AfterEarth.
I would recommend getting together a 'street team' if you will, to drop into gaming discussions all over the biggest networks, like a Facebook, Twitter, 4(or7)Chan, etc.
You may have this going for you already, but all eyes are on Eternity. There is also the Kick It Forward movement which may help.
Kickstarter is a fantastic concept for niche markets. I can see all sorts of excellent system/systemless settings being funded for cheap, as well as low-budget sourcebooks.