Ok, made some more progess...
Here is some 4-wire coming out of the top/rear of the printer for the extruder motors:
Here are the same wires coming out the bottom where I'll mount the Azteeg X3:
The wiring for the X, Y, and Z stepper motors:
Here is a mount I designed and printed to hold the extruders straight up and down above the printer, I figure I'll design a spool holder similar to the one I did for my Hadron:
And here is the current state of the printer: