delamination

i need to remove the rear of my ace 30.2. the rear is delaminating from the "plywood" and fiberglass. fiberglass is in good repair. so i am assuming i can reuse it if i can get it off in one piece? if i do what type of "plywood" is used in the inside and outside rear wall? also is there a store that would sell something similar to the inside material ( looks like cloth wallpaper) that is on the inside rear wall? lastly what type of adhesive holds the fiberglass to the "plywood"?