We recently had disaster when removing bathroom wallpaper...couldn't get all off , and in some areas, scraped down to cardboard and plaster. I spackeled couple of area where plaster fell out of cardboard. Other areas still had the 3rd , original hideous striped wallpaper from 68'. I asked paint store how to cover, suggested Stucco Paint. Painted, all day project. Looked ok when went to bed but morning had stripes showing under Stucco!...HELP. House goes on market next week. Can I paint over the stucco, if so what product, application tips, any help appreciated.