The overall length ended up being exactly 40' from bumper to bumper. The overall weight with about 250 gallons of fuel was 28,240 lbs. Wheel base is 336".
From the back of the seats to the back wall of the truck is the area I needed to finish in the cab. I added the dome light which also as click on/off side lights (just push the lense) I used foam panels, mainly because on our way home from the Show Hualer factory my wife bonked her head moving from the cab back. I will add hooks behind the 2 seats for a place to hang a jacket.
2003 28' Show Hauler Motorhome on a 1995 FL 120
www.showhauler.com