Spent about two hours cleaning up the wiring in the tower so now it looks pretty.  Next step is figuring out where the headset jacks will go and get those in. 

Next steps – mounting the comm antennas, remounting the GTX33 higher so it slides out of the tray above the comm antenna, making a mounting bracket and mounting the Navworx behind the panel, then adding the grounding block/forest of tabs to the structure.