Denford CNC Starmill Advice Sought

Dear Group,

I have been offered a Denford CNC Starmill and am in need of
information before
parting with my hard earned cash.

Here is what I know thus far...

It appears to quite old as the software and dongle is for a BBC micro
I am assuming it was manufactured sometime in the 80's.

Does anyone have any idea if this machine can be converted to run on
a PC
using EMC or such like?

Does this machine use ballscrews?
Stepper motor's or servos?
How accurate where these machines when new or in good order etc etc?

Any information / help would be greatly appreciated.

Thanks in advance,
Steve.