Just wanted to drop in with a quick update:
Joe from Project R3D (https://www.projectr3d.com/) has jumped on board with sponsoring the FK-1! He has provided a DueX5 so that I can run 4 independent Z motors and setup auto leveling on the carriage that carries the X and Y axes. He also provided a Duet Maestro so I can design an enclosure in case someone wants a cheaper option when building a FK-1.
So with this, the next step is getting the 4 ball screws and getting them mounted. My plan is to have this done, tuned, and functioning by ERRF!
Thanks for reading!