Like Willy said about Mumps...You are doing a lot of "assuming"...you know what they say about people that do that.You're assuming he can't find a qualified Vet, you're assuming what the Vet will tell him to do. "Hard" to find, and impossible to find are two different things. If he looks, BG is sure he can find one...he may need to drive a while though. BG will agree that if he doesn't find a "qualified Vet" he is sure to get bad advice...that's why BG said to find one.
If you have 5 kids...you've already lost....your freedom.
It does sound like it may need a larger enclosure. We really need to hear from the owner so we can ask all the pertinent questions. It's good that he's going to see a Vet, but it better be a qualified one, otherwise this animal may be worse off than it was before.