you didn't mention florida. if that was on your list, you could camp on the beach for $12 a night at Hugenot Park in jacksonville.
TWO in north ga should be open spring/summer. Good riding in the north ga mounttains...near Helen ga. south carolina has Table Rock State park...good camping and a half day hike on the table to stretch the legs.
i can go on forever but that's enough opinions from me. but riding the blue ridge parkway, every exit will give you 5 miles or more of very good twisties...ride the gap and turn around and come back....
2012 VSTROM ADV 650
US NAVY RETIRED