BOKO WF2 Hydro Mill

I'm looking at a BOKO WF2 Hydro Mill as a possible conversion
candidate. It's currently under hydraulic control, but uses hydraulic
motors and ballscrews rather than pistons so may be relatively easy
to convert to stepper or servo control.
Has anyone any experience with one of these or similar, anything I
should consider or look out for on it ?

thanks,

Rab

http://www.rainnea.com/cnc.htm