Ask other towns what they may be getting rid of...one of the "A" towns (Ashby? Athol?) got a nice CV from Princeton a couple years ago for cheap.
A mechanic I know attends all of the state auctions, and I went with him once. There was a guy who was buying up all of the best cars there, which my friend said he does at every auction. The guy runs a site usedpolicecars.com out of the north shore somewhere, I don't know how reputable he is but my friend said the guy was only bidding on the very best (mechanically speaking) cruisers at the auctions.
Sells them mostly to cab companys.
The best cars that I have found come from the government auctions,usualy low mileage for
CV and Impalas.
There is one on the 15 of August in No.Dighton.