Sweet looking CPO alright.
I've had an idea for backlighting a CP that I have yet to use. I think it would work well with your 'dash board' artwork.
Basically the idea is to use plexiglass as your CP material. One thick piece if you can find it would work best, or 2 thinner ones sandwiched and glued together. You would do all your joystick/trackball/button mounting as you normally would, and then apply your CP overlay.
Now the beauty of this is when you throw some lights in the CP box they would light up all 'gauge' areas, and your logos, etc. Sort of the same idea as modern pinball playfields. I don't think much light would make it through the black areas, you could always mask them off from underneath if so.
You'd have to experiment with lighting when you get to that point. LED's with an LEDWIZ making them all blinky would be really cool.