Have you been to Mammoth Cave National Park? If you can get by without hookups, it would be a good shakedown location.
If hookups are needed, the Dog Creek, Nolin River Lake COE at Cub Run KY is just 4 miles away and has water & elec with a dump station and it is rated highly as the premier COE in Central KY. http://www.rvparkreviews.com/regions/Kentucky/Cub_Run.html
I drove to Mammoth Caves several times while in college and always wanted to camp there.