Warpath, the mock-up was in the convesion, see the photo above. I just used some old sound board to get an idea of how to space things out.
KAYE RIVERCITY, 2" floor and wall, 4"-6" ceiling insulation, see(http://truckhome.com/eve/forums/a/tpc/f/794600927/m/6661008833). I will have exhuast vents...