I did get a couple of emails back from them and they are pretty sure it will work with mach3 but I really didn't fancy spending £2500 to find it didn't, so the idea is to get the mill and get used to it over the next couple of months.
I'll also be buying meshcam/mach3/cutview and with alibre I already have again get used to it all over the next couple of months.
Then I'll get the mechanical side of things from Ellik as he does a kit, then the electronics side of it from Kelinginc, it's all much cheaper and I know it will work.
............Rikk