Nice project and looking good. I'm thinking of doing the same thing.
The 19" PC monitor was a tight fit, I think I have about an inch to spare if that. And that is after I made the cabinet deeper to begin with.
Can you elaborate on this a bit? What did you do to make the cabinet deeper? Was it move the monitor mounting board closer to the glass?
What is the depth of your monitor (advertised/actual)? What is the make/model? What part(s) of the monitor hits the back panel? Is it just the neckboard/neckboard shield? I would like to go with a 21" if possible, but it sounds like that may not be possible. I have looked at different monitors and the depth of each can vary by a few inches (for a given size). I've seen other posts saying 21's are too big, but perhaps that person used a 'larger' 21 when a less deep 21 could be had...
Perhaps you could take several pics of those brackets that you are getting from tbombaci and post some pics for reference. Perhaps even take a few measurements. I would sure appreciate it if they have to be fabbed since they are difficult to find... (I'm sure others here would appreciate it too)
Thanks and keep with the updates! (and more pics)
Rick