Hope this is okay to post here but thrilled to bits that I've finally got this all working! My custom built cab using the GRS Atari Star Wars Yoke working great with Star Wars Trilogy in Supermodel, also now complete with functioning 'Event' lights thanks to MameHooker and an Ultimarc Pac-Drive... a lot of tinkering but not as hard as I first thought! I'm running this on a Dell Optiplex 9020. Best £60 I've spent from eBay...
https://youtu.be/rHBpr4aGHDw