We work camped for five months at
Lake Philpotwhich offers desirable camp sites, but not for a month at a time, nor your size coach.
I suggest that you g00gle for RV camping around Martinsville, VA as that venue is used to hosting rigs for the NASCAR races at the speedway.
The town is affordable, wonderfully scenic with a unique "old south" charm.
And, the location is central to western VA, Charlottesville, Galax, Floyd and the Blue Ridge Parkway.
Feel free to contact me for further information.
http://newmarkountrystar.com/contact/