Boeing 737 CDU heights

If my understand is correct, the width of the box behind the Boeing 737 CDU panel is 5" wide, whereas the top panel itself is 5.75" wide. On each 0.375" side skirt, how deep is it? I only ask due to the 6 buttons on each side of the display, and as such the depth needs to accommodate the switches, if I'm not mistaken. The depth doesn't really matter much to me as I can make the frame to fit the CDU, not the other way round. But nonetheless I'd like to get it as close as possible to the original!Also, even though this is of little importance, how deep is the whole CDU? I'm referring to the earlier CRT type CDU, and not the later LCD type CDU.Many thanks for any help received