I just put the Rockford Ballscrew kit in my series 1 and there a direct bolt in, however the stated acuracy is wrong its about .004 per foot not .002 but if your going to use mach3 is has screw mapping.
Next the motors the torque is needed for accel, decel and hogging out, if you use low enough gearing you can use those motors. Here is the downside lets say you use 5to1 gearing you get 1760 inlbs of torque but at lets say 2000 rpm /5 for your gearing and /5 for your pitch gives you 80ips for your rapid travel. you will have a slow motion CNC machine. Also you will have to custome make your own motor mounts.