Welcome to the forum, I would definitely use the Craigslist search string John has provided. Using the search string I was able to pickup a NBA Jam a couple weeks ago but that's not all.
You won't believe me if I told you but two days ago someone posted a mint condition Tempest on Craigslist in Southern California for FREE, that's right free. Supposedly the monitor went bad, when I got there the cabinet was in excellent condition. Felt bad for the guy he was moving cross country and he couldn't take it with him, so gave him what I had in my wallet $41. Can you believe that $41 dollars, I still can't!!!
I got home plugged in and fired right up but after an hour the vector lines went wacky. I think it might be the edge connector or might need some cleaning on the board but the important thing is the monitor looks great. Anyways, like John says the deals are out there and this guy here just wrangled in a unicorn for almost free!!!