I know this is a really old thread, but I'll reply anyway. I bought a 95 C class with God Awful pink and blue interior. The walls were some kind of contact paper vinyl. The seams were just a thinner strip of the same stuff. Looked terrible!. So...I bought some very heavily textured pre-pasted wallpaper, painted the walls with latex primer, then laid the wallpaper over the primer. I also papered over some of the fake wood paneling on the walls in the bedroom (which I also primered). Well, the wallpaper "bled" through a little of the paneling color, leaving dark splotches in a few spots. So, I went ahead and painted all of the wallpaper with latex "eggshell" finish paint. Looks great, and the paint sealed in the wallpaper seams so it looks like a sprayed on finish. I'm very happy with it, but the trick is to make sure you have THORUGHLY de-greased and cleaned the surface you're papering over. Otherwise it'll peel. Sand any rough spots and fill in any imperfections with spackle. I replaced all of the furniture (again, awful pink and blue patterns) with "Ultimate Leather" vinyl upholstery. I replaced the dinette with a jacknife couch and removable pedestal table, because I wanted a comfortable place to "lounge" when we were having our nightly glass of Shiraz. I'm now staining the new cabinet doors (custom red oak) and installing wood veneer over the phony wood cabinets. Floor was replaced. Old was a pukey white and blue linoleum which was curling around the edges. I used slate looking vinyl tiles and then I grouted between them with grout (using acrylic additive instead of water) so they won't crack. Looks exactly like slate tile flooring, but lighter and lifetime wear-thru warranty. I tiled the shower walls with the same stuff. Floor is 12" tiles and for the shower I cut them into 4" tiles. New plumbing fixtures in oil rubbed bronze. I'll have pics someday if I ever get it done.
I'm a newbie here, so if I blabbed on way too long, sorry. I really like this forum because of all of the great ideas. I never had an RV before, so it's a new adventure for me.