Hi Ron
Have a Williams Alley cats that I bought and did a refurb job on. It is a fun machine to play and I bought it about a year and a half ago from an op in Northern WV for $450. Yes it needed work and I had to send the main board out to clive to get it worked on but it is a very fun game and people definitely gravitate towards it. I ageee that the em versions I would shy away from. Too damn much work.
I think the name of the guys business in wv was guns and roses pinball. At the time he said he several more of these so you may try and see if he can hook you up at a good price. He even delivered the game to me!
Hope this helps
G