What 'decent' Milling machine?

[Jess]

So I found a Denford Traic PC, dont know much about the control system. What will the cost be to convert to Mach3? How much of the electronics is reusable?

I think quite a bit technically is. Denford have been pretty good at providing documentation and so forth. So, in principle, you can probably wire a breakout board to those drives, if they're working.

However, the electronics are often pretty old and basic. Most of the conversions I've seen seem to replace everything, except perhaps the motors and maybe the transformer.

Personally, I'd budget for replacing all of the electronics.