Okay, so I admit that I was thinking about doing something like this with an old Amiga tank mouse to be used with an emulated system (this would involve an Amiga 500 case with a modern hardware inside, running Amithlon or MorphOS).
I think this pcb hardware update for old Amiga Mice would work nicely with this.
Store link –> here <–
Mambo's Amiga Blog 