I have to agree, total lottery on the Betas as to how well they have survived. Mine looked ok from the outside/inside, even when we went to look and still ended up with a shed load of work to get the body back to something like and I still do not think it was that bad compared to some I have seen and it is all too easy to hide the bad news until you get in there and peel back the carpets etc. That is why on the Betas currently, unless you want to do a major strip down, buying a known good one is well worth the money.
Peter