We are making a similar run in late January and plan on stopping this park in Chattanooga (
http://chattacamp.com/) that some friends of ours recommended if you can make it that far on day 1. We plan on staying a couple days to unwinterized and there is a CW across the highway in case we need any emergency items.
Wayne, some of us suffer from freezing temps which prevent us from adding water to the tanks in the winter