My desk space is pretty full so I got a new table for the office, at least for now. (LR3 is on blocks so it doesnt roll away.)
And I have everything I need to be dangerous.
Thank you! 
Now at first forget the pendant. Not sure what order these tasks go exactly:
- Get mpcnc moving, dual X, dual Y, single Z
- Get laser working from Lightburn (usb driven)
- Get LR3 working dual Y, dual Z, single X
- See if second X IDEX is no big deal as Bart Dring implied
- Try 4th axis (single X carriage)
- Get pendant (on its own) to register button presses and joystick movements and handwheel steps
- See about communication between pendant and FluidNC