I must say your plan here seems destined to fail. Its either a joke or just real naive thinking on both parties. First problem being I know of no investor willing to put up a high risk investment with small return potential, especially with strangers, and on something they know nothing about. Sounds fishy. Also giving the investor anything more than equal share is foolish. It gives those who don't know a false sense of empowerment and will lead to disputes on team direction and leadership. Plus with such a small investment as a bankroll there will be very little pay for the players, thus leading to very little motivation to play. Lets face it nobody likes to work for free, and make no mistake about it, it is no longer playing for fun when you have an outside investor that you don't know personally looking for his money, its work. There also needs to be some pretty meticulous record keeping if things are to run on the up and up. It doesn't sound if you're up to it or if you even want to.
My advice if you care to listen is this, if this is a real opportunity and not just a message board joke, pass on it. Play your own game financed strictly with you and your partners money. If you don't have enough money to play, practice playing until you do. Its hard enough to keep a team together without outside investors, let alone with an investor with no understanding of his investment. After you learn more about the game, and that means the money management aspect of potential investors, than maybe you could look into that avenue of playing. But before you even talk to an investor you should already have an agreement statute in place that covers all aspects of players and investors rights and expectations. That way all potential investors know right away what the deal is and if it will work for them, and it eliminates those who are just blowing smoke and wasting your time. Good luck with it.