FWIW, you're not likely to see much of a response since you're a new member and asking for areas to hunt.
No recommendations on a guide. Chances of success on public are low due to pressure on limited public land pushing pigs onto private, the transient nature of the pigs, and them being mostly nocturnal--no night hunting on public land.
Having said that, December is a nice time of year to take a rifle on a walk in the woods in SC, and as of last year you can (finally) hunt public land on Sunday.
As I recall, most, if not all of public in SC is considered WMA land, so you'll need a WMA stamp in addition to your license if hunting public.