Cheaha State Park, Alabama the links on the right side of this page link ‘Camping and Lodging’ should give you costs for staying in the park. Note that prices have gone up to cover the Alabama state legislature siphoning funds away from the self-funding park monies. Update: State law now makes the Alabama state parks self-funding and their monies cannot be used elsewhere.
Alabama Hiking Trails Society they do trail maintenance, but I don’t see much in the way of hiking being done. I could have missed the mention though.
3D printing items
Companies I have bought gear from in the past: