We received these photos from an engineer who, rather enigmatically, wishes to remain anonymous. So we can't tell you who he is.
There are 3 waterjet cut pieces: the front, back, and inner shelf.
The shelf is held in place using angle aluminum, as you can see in the photos below. (I would have suggested using nutstrip instead, as it saves the trouble of making a custom angle bracket.)
Have you created control panels you'd like to share? Let us know!