The panels came out pretty easy. Alot of screw removal. There was just alittle sponge foam insulation, so I could see how you would need a secondary AC/Heater to keep you cool or warm. I still have no idea how or what I am going to use to finish the interior. I have decided on the floor. I have seen a few custom trucks with woods floors. I like the idea, specially with the kids and drinks. I plan to use pergo, due to it's thin profile and resistence to wear and scratching. I know your thinking I am crazy, but I put this in my motorhome and it was the best upgrade I ever made.