I've been in the business for 14 years. There are many different ways to go about it. Try to find a large commercial park and start off with the smallest business there and word of mouth will get around, good or bad so be careful do a first class job, dont try to get rich, and be honest. Honesty will get you very far not too many dealers are truely honest (repairs, invoices ect.) Every market is different so you will have to do alot of leg work, my best approach was face to face. You can read there face and they can read yours, people do business with those they like. Good luck with your venture and remember if you ever need help you know where to find it.