Hardware finally showed up from Fastenal and was able to make a little progress yesterday. First thing I did was remove the monitor glass brackets and upper marquee retainer. Drilled the holes a little larger and installed some 8-32 threaded inserts. Reinstalled the brackets (minus the right side monitor glass bracket) and finished them off with some new 8-32 torx screws.
Next I pulled the bezel, disconnected the monitor chassis, pulled the tube out of the front, and pulled the chassis with frame out of the back (won't fit through the front). After all that, I was finally able to make my access holes.
Fresh cuts, no clean up.
Look at the size of that holesaw!
It has served its purpose...
With the big holes cut, I could get access to the backside of the front panel and mount the Invaders. That top one was the biggest ---smurfette---, and I could just barely reach the top screw to tighten it (still need to go back and straighten him a little).
View from the top down, so you can see how they're mounted.
I need to make the wiring harness from the Invaders to just inside the main part of the cab before I stuff that monitor back in.
I can see the light at the end of the tunnel...