Help with Bonus Math

So, I've been offered a $75 bonus on Full Tilt. Since my main game is 9 handed SNG's, I'm wondering how profitable this will be if I decide to try to make the bonus. I know it's so much easier with rings. Since I now play on Stars, I'm thinking about getting some funds onto FT and trying to clear this. Anyone good with numbers here? I'm wondering how many SNG's at the $5 level I'd have to play...or how many hands of micro-ring (keep in mind I don't have any software to use for rings).

Playing $5.50 SnGs to clear bonus would be hell. You'll "earn" about 21 cents per entry at that level (42 cents per $1 of tourney fees). So you'll have to play ~360 SnGs to clear $75 in bonus.