Good luck! We bought a used one to replace a front load whirlpool that got zapped by a power surge, and parts or even a new washer were impossible to get with supply chain shortages. Ended up buying the top load Speed Queen, it’s a touch louder but I was sold on being able to be rebuilt and a local service shop.

Have you tried contacting a Speed Queen vendor? We bought a washer for an apartment and they were able to get us a key and also change out the coin box. I’m certain they would be willing to help. Even if it ends up being a service call, a few bucks might get you to the right solution rather than having a piecemeal solution.

Also, I don’t know what model you have.. but ours will hold just over $150. You have a lot of quarters in there!