I'd like to suggest at least trying a freeroll with a rebuy option on Full Tilt for maybe 10-20 cents or something like that. Then it won't cost anything to get the pass, and it can boost up the prize pool a little bit. I don't know if Full Tilt would allow you to do that or if it would cost extra money to host, but the people that don't mind rebuying or adding on could help fund some extra prize cash.

Just an idea.