We're just across the line over in NE GA. When we go up to Murphy we have seen Rick's RV Center west of Murphy. We haven't ever used him, but that's the only one we know in the Murphy area.
The one we use in Hiawassee GA has gone south for the winter.
There's a Camping World in Chattanooga.
You might google and see what else you can find.
Sorry I couldn't be more help.
Traveling with DH, our 3 cats, Katrina, Pas & Missi
2014 Georgetown 378
the toad, 2014 Jeep Patriot