folks told me when dad was a pup he took an old car he had and blocked one side upe and detached the park brake to the side that was up so the other would stay locked under a load, then took 2 bar rims and welded them together and welded loops of chain hanging down to beat the bark off 3 inch pine posts that his boss would lated soak in fuel and oil then dry in a ware house for treated fence poles. I saw a post peeler and sharpener that a Swedish company makes looks pretty easy.