I got a cargo pole meant for construction business to mount my Beamer on for projecting on the table when sewing. It was a suggestion from user @abcdqfr on my post from a bit over a week ago with the MacGyver setup.

It works perfectly. It’s stable, lights out the desk nearly to the edges, setting up takes no more than 5min including calibration and breaking it down again is done in less than a minute. It packs no larger than a broom handle and including the beamer clamp cost me just about 80€ (could have gotten it for a lot less, but I wanted a solution that will last and that really holds sturdy…)

More pictures in the comments