I have downloaded the wiring diagrams, and based on what I've seen so far I think this http://www.denfordata.com/bb/download/file.php?id=2528 is the right one for my machine.

I'm waiting for a m10 eye bolt I ordered from ebay (I ordered two but they only had one) which I am hoping will make lifting the thing a bit easier, then I can get into the guts of the electronics.

At the moment my plan is to replace the motion controller with either Linux CNC or something arduino based, but before I do I would like to establish if the steppers and drivers are functional. Is there an easy way to test the drivers and steppers without a motion controller?