Just a thought, if you are looking for a solo or two man operation you might consider portable wheel repair.Imo if you have a large multi franchise dealler in your area with a big service center you might look into setting up a location with them and essentialy sub out thier wheel straightening needs.This assumes there is not already a big repair place in existance in town.The truck that handles things now is not very big,I don't know what initial capital is needed nor do I know the profit potential,but at 125-150/wheel could be good.Also paintless dent removal also seems pretty good at 50/dent 
