I just bedlinered the areas where I figured moisture may be a factor ( the spots on the panels were a stoopid idea about making the panel a little thicker) and I am not insulating. I dont figure on camping in it or toting people around. Also going to try to keep with my , Nothing permanent, philosophy.
On another note. Has anyone ever seen a van with the inside ceiling made flat ?? I'm kinda thinking it would look horrible but it crossed my mind.