The Courtland airport (aka Lawrence County Airport)
9A4 was built in WWII as a bomber training base. My dad said he well remembered B-24's flying into Tennessee on their training runs. After the war ended it sat vacant for many years, but in the 60's and 70's there were drag races there. The runways are concrete, and a friend who ran a hot yellow GTO on many strips said he never had as good traction as he had at Courtland.
In the late 70's, the Tennessee Valley Authority had an interest in building a coal gasification plant there. It never happened. Our local RC club, the Decatur Model Airplane Club, used to get permission from TVA (like 15 pages of paperwork every month!) to go out there one weekend a month. We used to have some big name flyers come to our pattern events...like Joe Bridi from California, and Dave Brown from Cincinnati. We had some good times there. Some of the old buildings were still standing, and yours truly nearly crashed a Kaos into one of the old brick chimneys which stood about 50 feet tall.
All the old buildings are gone now, and the airport has a really good FBO with SS fuel, and some nice hangars. There are two active runways, and it is sort of away from the beaten path, but it sounds like it would be an ideal place for you guys to use for your purpose. I hope to be able to go out and watch. Hope the weather cooperates.
Best wishes,