Awesome, and welcome back to the thread, Tulip! Before and after photos would be great.
I guess I should post my little motorhome renovation. We had one wall in the living area that was covered by an awful NASCAR (I assume, some kinda racing) picture when we bought the rig. We found out why the previous owners didn't take it with them since when we took it down, there was Velcro on the wall (not unusual for RVs) to mount it but also some damage. We think they tried to remove it, damaged the wall, so put it back.
Anywho, given that there was wall damage, we decided to cover it all up. Lightly sanded the heat-bonded wallpaper (there's no removing this stuff neatly), primed, and covered it with beadboard wallpaper from Home Depot. Great stuff! Then painted in a cheery "Fresh Sprout" green, added a few of my favorite framed prints, and 3'x2' sheet of steel to use for the many refrigerator magnets we've collected over the years from our travels. (Our fridge is non-magnetic.)
We have many more projects on the list to turn this 2007 motorhome into "ours", but this is a nice start, I thought.
Before ~~ After removing the picture ~~ After completing all the work
Attachment 18068 Attachment 18069 Attachment 18070
Oh, and I was able to use the NASCAR photo frame (with a new mat) to frame a print from a photographer friend of mine. 
Attachment 18071
Emily
2011 Jamis Dakar XC "Toto" - Selle Italia Ldy Gel Flow
2007 Trek Pilot 5.0 WSD "Gloria" - Selle Italia Diva Gel Flow
2004 Bike Friday Petite Pocket Crusoe - Selle Italia Diva Gel Flow