I have never seen something like what you are describing. Is the rack on casters? What about mounting all the other components behind blank panels? Sure it makes it harder to service, but it sounds like the priority is keeping the other equipment out of harm's way.

I wonder if you used doors that were shorter than the rack, if you could mount them with a gap in the middle where the shelf for the CD/DVD player would sit. Say you have a 44U rack. Buy 2 21U doors and mount one at the top and one at the bottom leaving a 2U space between. You may have to get custom with the mounting, but that is what the C in CI is for, right?