I'm only adding this as a favor to the owner. I'm sure he'd be happy to show you everything, but he's about 85 yrs. and isn't inclined to use a smart phone or internet. I can arrange a phone call, just PM.
More on the motor home here, especially post 1 & 13:
https://67-72chevytrucks.com/vboard/...d.php?t=846583