used the:
DIGISHUO 7 Inch Touchscreen Monitor for Raspberry Pi 4B/3B/3B+/2B | IPS FHD 1024×600 | Responsive and Smooth Touch | Dual Built-in Speakers | HDMI Input
https://www.amazon.com/dp/B0BKSPC4QP?ref=ppx_yo2ov_dt_b_product_details&th=1
should be fine with no supports for anything other then the mount.
use the screws that come with the screen.
The author marked this model as their own original creation.