Yeah I have to say your BRM options are really scant. Getting into Cardschat freerolls will help quite a bit, and besides that play $0.25 45 man sngs on Stars I guess but its going to take a lot of time to swing anything up.
If you can afford it I would recommend putting some money on, even if you quadruple your money in the next couple months, you'll still have a two digit bankroll, If you have the spare change your future self will thank you.