My Homemade Mount
This is how I did mine. Now, it was in a box with no monitor, no pcb, no harness, no control panels! So I felt like I was saving it from certain doom no matter what I did to it. As this was for my own usage, I thought my method was fine and in the end you won't see it again until some day in the far off future you replace or repair the LCD.
I cut a piece of plywood the correct dimensions for the monitor frame. In the little chart, the red holes are for the monitor frame and the green holes are for the VESA mounting holes. They are almost 4" apart (100mm = 3.94"). In my case, the LCD was "thin/thick" enough that I used 3/4" plywood. You might need to use spacers, etc.
I would quickly measure the holes on your LCD before you start, there are a few different spacings but the idea would be the same.
While not the prettiest solution, you do get plenty of support and cutting a rectangle and drilling a few holes is easy, cheap and quick.