I'd guess the price is between lightsaver and viper/eagle.
I don't think having the acrylic piece in the middle plausible since it's a 1 piece design.
Interesting design! I too thought that having an acrylic layer would be very cool, but from what I've seen of the Orion, it would also make the case / keyboard taller still. I think there's merit to low laying cases and keyboards. I'm able to use my LightSaver without a wrist rest, because the front is quite low. If that's how the 70% board will be designed, I think it's a comfortable height. I was initially scared of the 11-degree angle, but in practice, the Lightsaver has been a very comfortable keyboard for me (been my main keyboard for quite a while now).
Another possibility would be to have a bottomless tray of sorts, where there's a large rectangular cut-out at the bottom of the tray, removing *most* of the bottom except a narrow ridge (say 1cm wide), and a transparent thick acrylic sheet is placed at the bottom, over the cut-out. Then the acrylic sheet bolts from the top onto the ridges of the "tray", and the plate + PCB bolt onto the acrylic plate from the top (say into stand-offs). That way you have the neat view of the finished PCB, and could still end up with some LEDs at the bottom, visible from the sides (as the case would be elevated slightly by its feet/pads). That would of course reduce the overall weight (and price), but it would also be a potentially softer and "springier" board to type on. Could laser something onto the bottom acrylic too.
