One thing I spotted is that on the Ebay description he left off the fact that the AC does not work. He mentions this on his photo site. Also on the photo site the background wallpaper looks to be the same coach, but it has an awning. i would ask if the waning is still available, even if it is a carefree it costls less to reinstall than buy a new one. Look for proper repair of the holes in the skin where the awning arms were attached. There will be 2 holes at the least at each end of the awning rail.
Also by the pictures I would bet that the tambour under the kitchen sink is either gone, damaged, or stuck. No shots that show it closed.
Looks like a nice coach, the polish job does look good in the pictures.
WBCCI #5501 AIR # 49
1978 Argosy 28 foot Motorhome
Wise men talk because they have something to say; fools, because they have to say something. -- Plato