I have based most of the cab I am making off of a QIX (Taito) Cab. I have altered the design some (The great thing about building your own. A lot of the measurment decisions have been made as I have been building it. I needed to see how some things would actually sit in real space.
LINKI made it a little deeper as my Taito cab is a little cramped and that was made by pros. I am not a pro and figgured I could use a little wiggle room if I need it. I also made it 25 in wide (Bezel & CP Measurement) vs. 23 in wide. This was more or less to balence out the look of the size of the CP when it is built. To fit 2 player controls, 7 buttons each + track ball in the center the CP will be like 32 inches.
i just went and measured my cab (TAITO not the one I am building). I will try to draw something when I get to work.