At the moment I'm strongly leaning towards Linux CNC and mesa cards which I know is more than capable.! . . . The weak link here is ME.!. . I've never used Linux CNC or Mesa cards but I know a man who knows is onions, hey Clive S..Lol . . . I'm sure together we'll figure it out.!

Watch this space.!
Don't take the piss it's a steep learning curve. But we will get there in another world.