Well, the coin door I have WILL work after all! The cabinet used to be a Moon Patrol. I found it inscribed inside the cabinet. Moon Patrol is a Williams cabinet, and the Jungle King uses a Williams coin door, so it’s actually a perfect fit! Yay! The only problem is the door where you go to collect the money is missing. You can get another from Happ, but I think I might go with The Real Bob Roberts. Everyone says he’s a great guy, and has the best prices.
The door is damn expensive, though. It’s perhaps $60 or so.