I'm working on a 1980 Black Knight and someone has replaced the lower ball trough switch closest to the shooter lane with a piece of crap leaf switch and home-made bracket. It's not doing the trick anymore and I want to replace it with the recommended microswitch upgrade seen here:
http://mirror2.ipdb.org/files/310/bkmicroswitchkit.pdf

The problem I'm having is that I can't find the actuator and switch/bracket assembly anywhere. They are part numbers A-8659 for the switch/bracket and A-8695 for the actuator.

Has anyone come up with an alternative that works reliably and fits the space? I'm anxious to get this wrapped up.

Thanks very much.