That sounds like a good idea. Fun, excitinig racing marketed to young thrillseeker who perhaps don't know about the sport, in cars that they are likely to go out and buy. Sounds like a win for everybody.
Don't waste another minute waiting on parts, or anything else. Just get out there and start racing! You will suck at first, and you will be slower than many other cars, but the only thing you will regret is not starting earlier...