Finally got all the 3D printed parts done, Stepper package arrived, and bought the complete kit. I chose to assemble the controller first. Here's a few photos. I have a DIY CNC router to help me. Worked great making cutouts in the cabinet. I chose to use panel mounted USB jacks. Makes a clean cabinet. Wiring is next.
Travel Track (7th axis) is mechanically assembled and adjusted. Very smooth and no backlash! Junction box is the last to get done. Then it's learning to program.