You aren't located too very far from the vendor who polished and Plasticoated my '64 Overlander. P & S Trailer Service of Helena, Ohio has been in business since 1968
and does very high quality work in my estimation. I can assure you that it is possible to get there without dealing with major metropolitan areas as that is how I planned my route. They are located on US Highway 6; and by approaching from US Highway 24 through Indiana, it is possible to avoid all major metropolitan areas.
I am not certain what their base fee is for a strip and recoat, but the entire job on my coach was approximately $175 per foot measured from the coupler to the rear bumper. On my coach the price included stripping, polishing, remedying a previous owners polishing attempt (with steel wool or sand paper) on one of the large flat side panels), polishing the new Worthington LP Tanks, and applying new Plasticoat. The results were absolutely fantastic. You can find the Ruth's (P & S Trailer Service) web site at:
P & S Trailer Service
Good luck with your decision!