Bill,
The TVR 2500M to which you refer looks, based on the photos, to be a very nice example. The one type of photo missing, however, is of the chassis but if it is anything like the rest of the car appears to be, it
would be a very nice example for the price.
TVRs have been for years, and remain today, one of the great undiscovered bargains in sportscars, in my opinion.
I've been owning and driving TVRs for the past 33 years and have owned the only TVR parts business in the US for the past 3+ years. The one thing you said that I would like to correct, is that you wanted the opinion of 'TVR experts'. It is my contention that there really is no such thing as an 'expert' on TVRs because so much information on TVR was never properly documented by the factory,so it is difficult to know everything about the marque. However, there are some very knowledgeable people on the TVR marque who have been around them for many years and owned a number of examples. I think they will all agree that if chassis is sound, if the car has never been seriously damaged, that you then have a good basis from which to operate. Parts are available, service is straightforward, and the cars are a blast to drive. Where else can you buy a hand-built exotic that's not going to rust out beneath you(if the chassis is good) and that you can drive fairly economically and have people come up to you and want to know about it for that kind of money? It's really the best of both worlds when it comes to sportscars.
But...that's just my humble opinion.
Marshall