Truckrolet,
Yes, that is the site I've been looking at....but I didn't see any pics of the heater nor the gas tank in any of them.....the back wall of the truck is grey, the floor is blue....since the gas tank sits on the floor but is parallel to the back wall, that's why I wondered what color to paint it.... i.e. is it part of the floor or part of the back wall?
Thanks