Billy Reynolds at Reynolds Services. He's a Star Buildings dealer now but he may still do contract erection like he has in the past.
There's a guy by the name of Jerry Calloway near Weaverville who does metal building erection. Don't know anything about him, good or bad, as I've never dealt with him.
Bodie Rogers at Rogers and Son Welding could likely tell you of some other contract erectors in the area. Bodie owns and operates an all terrain crane, and in that business you often work with folks doing that type of work.
Mountain Steel might also know of some local erectors. They're a small steel warehouse and fabricator and likely have customers in the business.
It would be good to talk with one or more erectors before finalizing a building purchase to make sure you aren't buying something that no one will touch. A friend (now retired) who had a couple crews and did strictly contract metal building erection for years told me long ago that there were a lot of building brands he wouldn't even quote on due to missing parts, holes that wouldn't line up, and things that generally wouldn't go together without a lot of unanticipated labor. He said these problems don't occur with major manufacturers like Butler, Kirby, Varco, Ceco, etc but are way too prevalent among some of the unknown brands.