I think you have a great idea but you have not presented it in a convincing manner. You have not addressed what the pain in the market is, what donors can gain from donating their funds, and most importantly you have not sold your candidates well, in my opinion. In this kind of business, you have to draw on the heart strings so people can give without thinking much! You have to connect your candidates to the audience. Check out these sites for inspiration, your idea is based on what they are doing.
http://www.kickstarter.com/hello?ref=nav
http://landing.indiegogo...bFqO6OursCFatxQgodamkAPQ