5 Minute Dungeon Tray Insert - Vertical Storage Solution

I travel with 5-Minute Dungeon a bunch and got fed up with the cards falling out.
I also store it vertically.
The pre-existing insert is actually pretty nifty but not when stored vertically. This print aims to fix that with a low filament (~30g) solution.
Print 1x the center piece, which fits very snugly into the middle of the tray and keeps the bosses + character sheets in place.
Print 2x the side pieces and hook them onto the tray. Fit the dovetails together and voila, it'll hold everything in place.
I print the side pieces on their sides, with supports, to ensure they are strong and the hook part won't snap off (see picture for orientation).
The fits are TIGHT, so maybe measure your box before testing it out.