They also bump out in back to clear the monitor neck.
You are better off trying to duplicate an Aussie lowboy cab then you are one of these. Using wood would require the machine to be ever so slightly larger in each dimension, and then it wouldn't fit through a normal door anymore, the whole thing is basically built to hold the monitor, it is metal and the monitor just barely fits.
I really did look into this and I have one in my living room I could copy, and trying to make that style out of wood would be a nightmare. Everything on them is to really tight tolerances.
But really, counting the price of wood, assorted hardware and a 27" monitor, well, you can just buy one.
If you really want to roll your own wooden one then simply buy your 27" monitor and I will measure the control panel height for you, that is going to be the only dimension you will be able to reuse. The monitor is at about a 60 degree angle and the monitor bay is the exact width and height so that a 27" monitor just barely fits in either direction.