I'm starting a new build on a 99 E450 box truck and was wondering what people have used for interior paneling. My only local options are Lowes and Home Depot and their selection is limited. My last build I used a white painted Masonite from lowes but I never really liked it. I would prefer not to use the mobilehome paneling so I'm leaning towards 1/4" plywood and possibly staining or wallpapering it. Any ideas?