DISPLAY STAND FRAME for Pimoroni's Raspberry Pi Official 7inch TouchScreen case

This display stand frame was designed for Raspberry Pi Official 7 inch TouchScreen with PIMORONI's acrylic resin frame.
It is substitutive part for PIMORONI's acrylic triangular cutouts in brief.
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-The official Raspberry Pi touch display
https://www.raspberrypi.org/blog/the-eagerly-awaited-raspberry-pi-display/

-Raspberry Pi 7" Touchscreen Display with Stand
https://shop.pimoroni.com/collections/displays/products/raspberry-pi-7-touchscreen-display-with-frame

--- instruction for asse