There are three AS relays in Funland which are essentially small step units. Two of them (the Y and Z relays) are configured the same with a wiper and disc on either side and should look the same apart from the wire colors and number of connections made through the jones plugs. The Y/Spin Score Control relay has a 6 volt circuit on one disc to drive lights and a 25 volt circuit on the other disc to drive the L, M and N or 1, 10 and 100 point relays:
Funland Y relay (resized).jpg
You should double check the wire colors on the jones plug socket in your game but three of the sockets will be for the 6 volt circuit and the remaining seven will be for the 25 volt circuit.

Finding a Funland Y relay will be tricky, but converting an AS relay from another game wouldn't be a big deal if it has two discs, you can find a spare 10 pin jones plug and you're handy with a soldering iron. You'll need to use the schematic to rewire it to match the configuration used in Funland shown above.

PBResource may have some of the parts but I don't think they have all of the parts any more so building one from new parts might not be an option.

/Mark