Need help Restoring this Nomad 883

Tl:dr can anyone point me in the right direction to turn this nomad 883 back to stock?

I bought a used nomad 883 that was partially modded for eventual 4th axis, it currently has some sort of arrduino xc-x11h driver board and I’d like to revert it back to stock. I have the main grbl board and the small mcguillicutty board as well from nomad, however I need pin outs and am unable to find em direct from Carbide and google hasn’t yielded much either. I’d just buy the cables direct from them but I’m guessing I’m gonna have to solder them by hand or at the very least fashion new connectors myself.
Attached is a photo for posterity.

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