I have a 22in LCD that I de-cased and mounted to a board that's the same width of the inside of the cab. Its not officially installed yet, so for now it's supported by the original monitor brackets that were left in the cabinet.
I have a trash Ms Pac glass bezel from another build that I'm using for spacing. Since the monitor is more narrow and longer than the original, I masked off where the new bezel design needs to go with blue tape.
I plan to use an original looking Galaga style bezel design, but sized to fit this monitors shape better. I reached out to someone on this board to help me with the design. Once that is final, I'll post some pictures.