Glad I could help; I came across a post stating stating the size they used when doing some research on Reddit r/Starlink and did not think to check the actual documentation...got lucky I guess.
I am currently printing the 3rd iteration of the mount in CF-ASA filament; really good stuff for interior vehicle use. I do not use 3D printed parts for anything external on my Jeep, I live in the Vegas area and the temps can get pretty ridiculous. This is just a personal choice, I do not want...
I have a similar setup using a MOLLE panel very similar to this one (https://www.amazon.com/KNAWIER-Compatible-2018-2023-2020-2023-Gladiator/dp/B0C77P8SBV); same MOLLE pattern w/ the additional oval'ish in between the MOLLE squared holes. My version required drilling, which I would not repeat...