Thanks again for all the positive feedback... it really helps!
Made some progress with the monitor and bezel area. I used black picture mat (with black interior) for the bezel. The glass is 1/4 inch "gray" (have no idea what percentage that is). Under the shop lights, I can barely see some details through the gray glass and the minor bezel provides a small sense of depth. I was concerned I wouldn't like this arrangement, but now that I've seen it... I'm very satisfied with the results.
I've shown the monitor mounted before, but this image shows how I blacked out the insides of the frame that holds the monitor board.
Since my bezel is flat, and the monitor is all kinds of curved... I made an MDF spacer to raise the bezel high enough to clear the edge of the monitor.
On top of that I put the actual monitor bezel.
The easiest way for me to trap light leaks was to make another "minor" bezel that sits on top of the monitor frame. This prevents anyone from looking directly toward the edges of the main bezel or the MDF spacer. If you look straight on, the minor bezel hides the light leaks. If you look at an angle, the light is not visible. I tested it at all sorts of angles with my garage door up (another blistering sunny day here) and there was no light leaks.
These are the individual components... MDF spacer, main bezel, minor bezel.
To keep everything from sliding off, I mounted a strip of aluminum on the front of the monitor frame. I mounted it so that the strip is just a little proud of the glass so that tokens or quarters can be placed there. That's the kind of stuff its all about for me.
And a very anxious customer.
EDIT: The monitor looks small in the last image because it's swimming in a sea of black. When viewing it in the flesh, it is very easy to distinguish the sides of the cab and it doesn't look so small.
Seven days and counting.