Seiber Hegner RB1 Milling Machine

I am currently building a seiber Hegner RB! rigid bed milling machine. I have retrfitted it with Bridgeport ballscrew kit. and an AC Tech SMVector VFD Drive to control the spindle. The spindle motor is finally running i will now be migrating over the stepper motors and control from my old round column mill to this then i will be setting up the VFD to run under Mach3 Control. Still alot to do but it is finally coming along will post pictures if anyone is interested.

Native34, do you have any more details on your conversion? Did the stock bridgeport yoke fit? How did you motorize the z axis? Any pictures would be great!