For those who plan on camping there are two campgrounds in the area.  The Barnyard RV Park in Lexington and The Edmund RV Park also in Lexington.

The Edmund RV Park is closer to the range but is not affiliated with Good Sam and has a lot of full time residents. It's kinda remote and will require a drive to get to any restaurants and also the banquet. 

The Barnyard RV Park is off of Hwy 1 behind the Barnyard Flea Market. It is Good Sam affiliated with plenty of food and retail options surrounding it.
Palmetto Traveler has visited both sites and recommends the Barnyard.  However, please be aware they fill up very quickly for weekends so make your reservations EARLY. Barnyard is also much closer to the host hotel / banquet location. Please feel free to contact Palmetto Traveler ( if you have any questions about either park.
Edmund RV Park
5920 Edmund Highway
Lexington, SC 29073
The Barnyard RV Park
201 Oak Drive
Lexington, SC 29073
(803)957-1238 or toll free at 1-800-633-6351