It was modeled after RalphP's TOTM on RC from a few years ago. He hired a company to make his, this was my version of it. Works great. Making a couple small changes to them this time I install them but it will be virtually the same look.
If it's not too much trouble I would love some detailed pics of how you put that together. I was just talking to my wife tonight about possibly adding front access to mine and Im looking for ideas so it doesnt just look like a cabinet above my display
It is a real simple design. It is basically to 45 degree angle pieces that sit on each other.
There is a strip that is mounted to the wall with a 45 angel outward:
Then on the back of the panel is another strip with a 45 angel outward:
As you can see very simple to work with. I used 3/8" thick starboard. They were expensive to buy in full sheets but it works great, holds up well against the water and lighting and cleans up very well.