It was a nice car, but maybe a bit more than you wanted to pay? I think you have got to be quick off the mark with good ones at the moment. It might be worth speaking to a few indy dealers and telling them what you want - that way you might get advance warning of something coming up. Dealers would rather have someone lined up for a car than have to bother advertising it - thats exactly what happened to me when I bought mine. I just dropped in on spec and there was a yellow CS there (the famous original PCGB one) and there was a guy coming from the other end of the country to see it that afternoon. He hadn't put a deposit on it and the dealer said if I wanted to, I could have it (talk about pressure, I wasn't comfortable about rushing anyway!). The guy turned up while I was still there and bought it. Two days later the dealer called me with the details of another - the one I eventually bought. I put a deposit down on it straight away - after the deal was done, he told me that two other people had been in line for it too. If you are going to buy from a specialist, I think that is the way to go, to get a good car.
Call Ray Northway (just off J12 M4) as well as Henry Firman (911virgin) - they might be able to help, and are local for you.