We've stayed at Honeybear a couple times, but that was when we were pulling a shorter trailer. We really liked the campground, but I don't know if we can stay there now that we have a longer trailer (WH 33BHBS). If I remember correctly, there is only one 50A site and that site is also the easiest to back a long trailer into. At 39ft, you may be limited to the D-sites (on the map) and those will be back-in. Coming in from Boone and NC-105, the road to the campground a bit narrow and a couple hairpin curves, but manageable.
We had a lot of fun when we stayed there and the Boone area is one of our favorite places. We make it out there 2 - 3 times a year.
2014 White Hawk 33BHBS
2014 Dodge Ram 2500 CTD, Megacab, 4x4