Give Chris Day (Slot Machines Unlimited) a call/text: 937-672-7288. He had 6 of them (Wonka Wheel cabs) when I was there about 2 months ago. Fair prices on them too. He ships games all day long, and in his sleep, if you're not near Dayton Ohio for pick up in person. Very professional business!! If Chris is busy (I've never known him NOT to be busy, LOL), Give Rawni a call direct: 513-850-1384. She's Chris's right hand Gal - she knows her stuff (sometimes even MORE than Chris does! - LOL).
I recommend getting one WITH the wheel. That way you can play Seinfeld (I think that's the only other one that requires a wheel

). Just unplug the wheel if you're playing Flintstones, Simpsons, etc.
Also; They are MONSTER CABINETS!! I had to disassemble mine just to get them in my game room. They're about 112" tall so you'll need 10ft ceilings if you want to set them up correctly. Very cool cabs to own. Simpsons is my fave!
Hope this helps!
PS: Don't bother with the "Trying to make it work with a J43"..... Been there, done that. I have a spare triple bottom monitor, made a customer power harness and all that. Got 5 screens booted, but the jumper on the J43 backplane won't accept a WMS set up. Kept getting "Resolution" and "Incorrect number of Monitors" Errors, so I just bit the bullet and got dedicated cabs.