If they are looking at the one at Foretravel of Texas, they can be assured that everything that they find wrong will be fixed before they pull out of the lot. But considering the TV issue, I doubt that they are looking at the one there.
If I were the OP, I would be inquiring over at
www.foreforums.com, posting the specifics, including Motorcade #, about the coach and asking what, if anything, anyone knows about the particular coach. I am sure that there are folks on that forum who can tell him everything he needs to know about the coach. Your friend will find "smarter friends" on the Foreforums. Some of them have even totally rebuilt totaled Foretravels. Super good folks over there. They will even tell you if the asking price is to high. And if they know there is something wrong with a particular coach, they will speak up!