I converted one about five years ago. I kept the original steppers, stripped out the entire electronics and started afresh with Gecko 201's. There is just space to fit a Compac EN small footpring PC in the plinth. I made a new front panel with waterproof keyboard attached and had a monitor on a rear mounted arm.
I agree with the previous comment regarding underpowered spindle. Sold it about three years ago before I moved, and now have an Eagland CNC lathe sitting waiting to be fitted with a new controller. Rather bigger being based on the Colchester Chipmaster castings
Andrew Mawson
East Sussex, UK