A hobby shop on site would need major security including alarms, and separate insurance. Hey bud, if you can make it work more power to you. I just hate to see anyone lose a bunch of money especially in today's economy. If I were you I would write a business plan and calculate all your expenses. Then figure out how many racers you would need once or twice a week to cover those expenses. Formulate a good plan and don't just jump in head first based on a few posts on RC tech. Best wishes for success.