I'm rehabbing my first EM and have a few parts I will freely share if someone needs them more.
First, my game (Prospector by Sonic) has two spinners. One was replaced with an incorrect one that didn't quite fit, and was weighed to be upside-down / backwards, so therefore didn't spin well. Unfortunately my rebending the wires for proper fit stressed them and it broke after a while. Still, certain random original parts can be unobtanium, and how many games used chickens on spinners? Maybe it's rare enough for someone to try fixing...
The spinner is free to the first person who wants it. What game was it from?
Next is a Wico Electronic Sound conversion board for EM's. Blasphemy, I know! But back in the late 70's I guess they tried to modernize older games to compete with SS games, so it makes sense.
I have no idea if this works, I did not bother to try or test it and am reverting my game back to chimes. I have been told they sound pretty awful, but again, I have no idea. But if you're curious or have need of it for some other reason, it's yours... as-found, as-is, untested. Only catch is due to the weight of the base plate and mounted transformer, I have to ask for shipping on this. Shouldn't be much more than $10 I would guess. I did toss that crappy (non OEM) speaker so I'm saving you that deadweight at least
PM me if interested in either one. Not trying to profit here, just trying to give back what I can to a community that has helped me so much...!