Support and guide for waveshare 11.9'' monitor

I don't know if this model can be useful to anyone as it served me to solve a very specific problem. Anyway, the problem to solve is to place the 11.9" waveshare monitor with the Raspberry Pi board and the HiFi Berry board with RCA outputs between the amplifier and the bottom of the cabinet's last shelf, and to make sure that the monitor comes out from under the shelf and positions itself slightly above the amplifier, slightly tilted. I am very satisfied with the result as it works very well. Unfortunately, it is not very rigid, and removing the supports, especially those for the bottom holes, was quite complicated. To attach the guides to the cabinet, I used 6 x 15mm countersunk wood screws.