I saw a jamma cabinet go for £50buy-it-now on ebay recently, it looked in dam good shape, it was a "Golden T" (some golf game ive never heard of?)
The mainboard was dead but the rest worked and it even had the coinmech and door. Only downer was the monitor wasnt the best one to have apparrantly, was a bad model that can burn out easy.
I agonised over buying the dam thing but I couldnt go and collect it, the seller stated collection only and I didnt have access to a van.
I still plan to get my own cab and get it converted one day