a little number crunching :
4% BR growth per day over 1 month is 1.04^30 = 3.24, so at the end of the month you should have a little more than tripled your roll.
You'll need (assuming you're using the 120$ roll for NL5) to win 120*2.24 = 268$ or 5360BB.
With a win rate of 6ptBB/100 that's roughly 45000 hands to achieve your goal. I'll let the elders comment on the feasibility of this or correct my reasoning.
Good luck with your operation.
