There are 3 MC dealers in NC; Charlotte, Greensboro, and Raleigh.
Inboard Marine Service (Joe Thompson) is in Wilson (my #1 guy!)
Powerboat Service Inc (Diego Serge) is in Raleigh on Atlantic Ave. (highly recommend)
Your Mobile Technician (Brandon Patrick) is a mobile boat service. He is based out of Durham, but will travel to you to perform the work. There are a few people on here who use him.