Hi Gboop & Gary,
Thanks so much for your time and input. Can't see where the leak is at, but suspect at least the back 1/3 of the roof underlayment (deck?) is rotten. There is some indication (wrinkled walcovering) in the area where the ceiling and wall meet; I would objectively classify it as minimal to moderate. Will the Eternabond adhere to a soggy surface? Would the option of hiring a carpenter to remove the affected rubber top and decking be plausible, assuming I could find one up to the task?
I would not sell it without telling the potential buyer(s) of the problem. Now I know this question can only be answered in a wild(!) guess, but what would be a realistic price for my old beast? Less than 70K miles, engine and drive-train solid, coach & truck bodies straight, interior very clean (never been smoked in), new tires all around, new dump system, no generator (I fried it, stupid, stupid, stupid -- and costly!!).
Know I'm asking a lot, so will understand if you decline. Again, sincerely apreciate your help.
God Bless
Lloyd A. Leinmiller