I know of a very cool campground in Trade,TN just outside of Boone, NC (about 15 min) about hour 1/2 N of Asheville that has primitive sites on like 80 acres. They have full hook up sites, but also private van/drive in sites and cool tipis and tents scattered around the mountain, very private, also often have garage bays in a barn that you can pull into about 500. yards of Hwy 421, but very quiet and safe. Cheap, think the sites are like $20. just can't tie a dog and leave it, they are picky about that, but this is super close to Boone, close to  Skiing, Mountains to Sea Trail, Damascus and the Appalachian Trail. They also offer long term parking for through hikers there as well. But you have to get a shuttle from there to the trailhead, they will take you but only in the back of a pickup truck since COVID, think it's $40 for their shuttle. http://www.tradetn.com the number on their sign was 423.  43 six, 4900