Classic look? The Ultimate arcade II doesn't really resemble any real arcade cabinets. It isn't the best design for 4 player cabinets, as it has a screen that basically sits straight up and down, while most factory 4 player cabinets leaned the monitor back quite a bit in order to improve the viewing angle for the 3rd and 4th player. Look at a Simpsons or TMNT machines to see what I mean.
25" monitors are indeed big enough for 4 player machines, every 4 player machine you remember came with them standard.
Well it looks more like a standard arcade than the showcase kit mameroom offers. Looking like the best I can do with a kit anyway. I have found a couple local places in Chattanooga that sell used arcades, may see if I can get something with an ok condition cabinet (insides don't matter) that I can replace the monitor, control panel, and fix up the art/paint to my liking. Hooray for my own vinyl equipment. Probably will still go with the mameroom 4 player cp kit. Wish the 4 way was in the middle of the CP though.
Good info on the monitor angle, found a few threads where some people have changed it to make it work better.
Now I need to start researching monitors, cause it doesn't look like I will get a plan for a big size LCD, still lusting after that 37" on ebay, but I really want to build this myself.