Bridgeport Series II Conversion

Ive got a Bridgeport Series II, that I want/need to convert (change the drivers and other components) in order for it to work, I have a slight idea on how to do it as Ive seen this link Bridgeport Series II CNC Gecko/Mach3 Conversion, but it dosnt show any specifics on the wiring or diagrams, does anybody has any of that info? Any help and hints much appreciated it.

Thanks