and my fabtabulously great lighting for the images....
basically, there'll be some 1-by running vertically in the case, which the tray will be attached to, then the motherboard will be attached to the tray using standard stand-offs. The door and plexy will be at least an inch away from the back of the motherboard to prevent static transfer. The areas within the lines and circles will be cut out so that those portions of the motherboard will be revealed through the plexi.