TOS-KURIM CNC Upgrade

[JimJam]

Ok, so some info I have found about the motors which also seems to match what's on the motor plates (photo attached):

permanent magnet DC servo motors
2000RPM
170V DC
tachometer mounted on rear (I think.. photo attached), but no idea of what output this gives...

with regards to the backlash and scale accuracy asked previously..
They are Anilam linear scales with 0.01mm resolution, again no idea of output type but photo attached if anyone might recognise it.

Done some measurements on the backlash, it's a lot worse than I thought to be fair!
X: 0.15mm
Y:0.04mm
Z:0.06mm

On a side note, the X axis moves faster than the pitch of the ball screw, does that mean there will be some kind of gearbox on the ball screw itself?

Like I say accuracy isn't of too high importance with this, I can sneak high accuracy stuff into lunch breaks at work if I do need that.
The main type of work I will be doing on it is very agricultural low tolerance stuff that I can't always get away with at work ! In all honesty I don't really need CNC functionality for most of it, its just a nice bonus to have!

With all that taken into account, Is a stepper setup going to be best for me? I know its probably not the best end result for the machine but it will keep it nice and simple for me to convert and use for now.

It would be nice to keep all the original motors but its sounds like it may be a bit more complicated to get running?

Or will this be realistically unusable as a CNC with that amount of backlash until I get that sorted?