I am re-doing an early 70s bathroom that has the original textured wallpaper. The paper has kind of a shiny base with a raised velvet type design. My idea was rather than going through trying to remove the paper, that I would just cover every square inch in some sort of thin board type material. This would give me a perfectly smooth surface. i would then do sort of a board and batten/wainscoat type thing to about halfway up the wall (the ceilings are 8 ft), paint from there up and top it off with a small crown molding. I have been looking for the material and I am wondering if the brown tempered hardboard would work for this. I know that they make beadboard for this type application, but I would rather have the smooth surface than the beads. I know that I need to use much adhesive and some sort of fasteners, nails screws etc. Any suggestions on the specific materials to use and what would be the correct way to do this are greatly appreciated.