1. My tv does touch the back of the cab, thats the main thing that keeps it from going any further back. I later added a bit of extra wood pushed up against the tv on the monitor shelf as an extra precaution so that there was no chance it would break though the back board.
2.I just cut 4 small blocks of wood (1''x1''x3'' I believe, although the size doesn't really matter) and attached them to the cab at each of the four corners around the tv.
3. I actually used lexan because its easier to work with and I just got it at home depot. I think it was around $20 for the sheet and they only carried one size, which I had to cut down. Cutting it with a flush trim router bit is by far the easiest way to cut it. I cut it down to 26''x26 1/2'' although I'd recommend measuring the height where you're going to put the plexi because it would vary from cab to cab.
4. There was a nice tutorial on this at
http://spystyle.arcadecontrols.com/index1.htm unfortunately that seem to be dead and the web archive holds an older version that doesn't say how to paint it, but it has advice on securing the tv, so here it is
http://web.archive.org/web/20041029111548/spystyle.arcadecontrols.com/index7.htmNow, the way I painted the plexi was I secured the plexi to the cab with the tv already installed and marked on the plexi with tape the outline of the tv screen on all sides, you may want to mark it slightly larger (1/8'' to 1/4'') so that it won't block the vision when viewing it from one side or the other. After the plexi is marked, I took it out and then using newspaper and masking tape I covered the area on the inside of the plexi that I had outlined on the other side. Once it was covered I just used black spray paint and put a few coats of paint on it. Viola, you have a nice looking bezel.