Maybe able to help a little, as I have always wanted to build something similar.
It basicially is a "more mame friendly" design of a Dynamo Showcase cabinet. People on this board have certainly looked in to it before, and from memory a guy buy the name of Taz? (something) was able to build his own version of this cabinet with his own dimensions. I think he even posted his plans... but from memory the dimensions were not true to the Dynamos. (sorry Taz if I am wrong)
But anyhow this may help if you want to recreate the Dynamo dimensions (actually there was a PDF available somewhere of how it was put together with out the dimensions). With a little estimation and these dimensions you may be able to recreate a close to authentic Dynamo, but if it helps some one on here from memory picked up a used cabinet for about ~800 US dollars. Maybe a bit cheaper considering it has the massive screen and all, as I personally don't know how much cabinets are in the US, can be a bit exie in Australia.
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*** FROM MAKERS OF DYNAMO SHOWCASE ****
Hello Alex,
I'm glad to help you.
On your first question, the cabinet size is the same for each monitor.
On your second question, no sorry the cabinet does not break down any further than the front and back section.
On the third question, As to the size
The back unit is 79 inches tall and 36 inches deep from where it connects to the front unit to the back wall. These are the measurements you would use to see if you can fit it through a door way. It's 52 inches wide.
The Front unit is 47 inches tall and also 36 inches deep from the coin door to where the front and back join. It is also 52 inches wide.
The over all floor space a unit can take up is 52 inches wide and 72 inches from the coin door to the back wall. There is also a 12 inch insert that you have the option to use that extends the front from the back unit by 12 inches which increases the overall foot print to 52 X 84.
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Actually now that I think about it click on my username (zzsprade) and look through all the posts I have replied to. I am sure I have some on the Dynamo Showcase that may lead to some dimensions/plans etc.
Good Luck!
-Alex