as far as the 1/10 buggy racing it's pretty limited down there. there is a club based out of newport TN called Bear Bones RC they welcome every aspect of the rc community. The club president, Keith (aka bear) has a pretty sweet backyard track and the guys run mod SCT's regularly. Another killer track will awesome people is Harmony Hills in Jonesboro TN it's more for the 1/8 buggys and truggys. And a track just opened a few months ago right outside of knoxville called karns split raceway that maybe what you are looking for, from what I hear.