Greetings LoydE!
You are close to two vendors who are tops in their field (IMHO). For exterior restoration (plasticoat removal/polish/re-plasticoat), I don't think you would go wrong in considering P & S Trailer Service in Helena, OH. The Ruth's (P & S Trailer Service) restored the exterior of my '64 Overlander, and I am totally thrilled with the results - - this will be my second season since restoration. The vendor that handled my interior restorations (both Airstream and Argosy) is Fowler Interiors of Symsonia, Kentucky (just a few miles East of Paducah) - - the result is absolutely fabulous on the '64, and my Argosy is currently at their shop undergoing the Fowler treatment.
You can see some before and after photos of my Airstream as well as before pictures of my Argosy at:
Overlander64 Photos
The only restoration work that I have contracted out to other firms was the bathroom fixtures. I had a local fixture refinisher refinish the tub, wash basin, shower enclosure, and toilet - - this was a case of working with my regular plumbing contractor as this particular vendor didn't advertise and works only through referrals.
Kevin