Werner Ladder Camera Mount (Lock-In system)

Sometimes you have to photograph something big. Tripods are too small, so for me it was obvious I needed some way to mount my camera to the ladder. To my surprise, I didn't find any such adapters I could just buy so I decided to make one.
Unfortunately this adapter will only work with Werner ladders that utilize "Lock-in" system. It's round hole mounts on top of the ladder that hold various tools and paint accessories.
I don't know if other companies utilize this so I can't guarantee it will w