i shall post some WIP plus completion pics.
when you say it protrudes from the back - do you mean you don't have a back on your cab? i deffinitely want one on mine
I have a rear door panel, but it's not actually mounted on the cabinet. The monitor itself extends back to that panel, and then the wiring protrudes a little beyond that (just an inch or so). I always figured that I'd a) smoosh the wiring against that back door, b) cut a small window to allow them to stick out, or c) re-wire with angled connectors or something like that. In the meantime, I've been happy with d) no rear door for now.
If you have a modern monitor, I'll bet that you have no trouble making it fit. The old ones, and particularly the big ones, were often very deep.
I look forward to seeing your WIP.
-pmc