Go to Home Depot and buy a 4'x8' plastic panel used in bathroooms etc. It has a diamond like shiny surface on one side. Cut the panel to what ever size you want up to 97" diagnal. You are going to use the back side which has some shiny mold marks on the panel. Use a scotch brite pad and scuff up the entire surface to a uniform surface. Mount on the wall with adhesive or what ever. Will cost you about $17.00. I just installed a Stewart Grayhawk motorized in it's place and there is not much difference.
