Sorry, I can't help you. I have just ordered one that is mach3 ready.
I don't know what to expect though, I don't know if it will come with a mach3 configuration or if I will have to start from scratch trying to set it up so I am looking with interest. The machine I am getting should rapid at ~ 1200ipm so I hope I don't get any issues with M3. I am adding a smoothstepper to the mix as well.