Let us not forget that shaft driven cars usually require less maintenace than their belt drivien brotheren. If you are really having a hard time with the roto-start, then get yourself a used bumpbox off The Buy/Trade forum here or a eBay or Craiglist. Install a decent Lipo pack and you'll be good to go. Should you ever decide to upgrade to a better car, you won't have to worry about getting a bumpbox.