I don't have a picture yet. However, I am mounting the U3100 Arcade VGA monitor in the same original arcade monitor bracket that came with the cabinet.
The problem is that standard arcade monitors do not have this large side bracket as the U3100 VGA monitor does, so it fits fine.
I'll probably have to modify the bracket, or as you are doing, cut the rear panel out and put a doghouse box attachment to extend the back a bit.