u/A1J2P3

Getting the house rewired/painted and had to strip wallpaper from 2 of the bedrooms.Unfortunately we had people helping us and they were a bit too liberal and we've got a few stretches of exposed plasterboard now. Being told by our plasterer that we basically need to go with lining paper but I loathe the idea. Are these gone beyond the point of poly and sanding? Would it look shite?