Verry Nice work i have a few questions
1 what did you scale down to from the original?
2 what size monitor did you use?
3 what is the angle the monitor is at?
4 Did you use mame or a jamma board and where did you get it if it's a jamma board which it looks like
Great Job im jealous i need to start my build now and stop drooling over yours.
1. I scaled it down 68% from original ( example: 6cm x 0.68 = 4.08cm )
1.2 inner width is 44cm and is also use 18mm mdf, height:75cm and 51cm deep
2. Size is a 15 inch
3. I don't know the exact angle because i would hold the monitor in position and would sit in front of it until it looked good

, then draw a line with a pencil on one side and copy it on the other.
4. Its a jamma board, I got it from a online store... just google it and you will find it. the only thing you have to be sure of is that it is a vertical game board and not horizantal. Meaning that you will have to put your screen vertical in the cabintet.