I have an older home, 70 years old. When I moved in I didn't want to repair all the cracks in my livingroom ceiling, so I put on a roll type textured ceiling. Now 12 years later and three white latey over paints I want to remove it and have a nice smooth ceiling. Can you HELP? I read about this Textured Paint remover that Wm.Zinsser & Co. was developing but when I contacted them they were still in the developmental stages.