Which manufacturer should I go with reguarding a switch and go type of system? Also, what are some locations (VA,MD,PA,NC,TN,WV area) to ahve them installed? I'm talking with several people selling several trucks but need to get a better grasp on what brand and who to put on the body. Whats a price range? Say system + one body (which is all I'll be getting at the moment)........$12k?