Need Help and Hardware to make CNC Lathe machine PC Based

I have a Harrison Lathe machine TRAINER 280 CNC/Manual.

The manual mode of machine is working perfactly but its CNC mode is not
activated due to damage e-prom software of its one board that is the
main interface between the Acorn computer and all the control switches.
The card is made by "BRADFORD INSTRUMENTS LTD. 060/04 1986 England",
the 64k eprom IC # is TMS2764-25JL and the label on the IC is "Lathe(m)
Ver.2.02". I tried to arrange the software by internet but fail.

Now i want to swap my Lathe over to a modern PC, Gecko/Rutex drives and
driver software such as Turbo CNC or Mach 3 which i have downloaded
from internet.

Now plz tel me From where i can get good hardware and complete GUIDENCE
to complete my task.