While not a remix of a design this was heavily influenced by Johnny_Tsunami version of the box insert. That can be located here - https://www.thingiverse.com/thing:5411665.

This fits all current expansions.

From his basic design:

I made the spaces larger so that they can fit the Unstable Games sleeves.
Created a space under the large cards for more dice, also made the spaces bigger to hold 16mm dice.
Made the dice tray removable.