Thanks to https://www.thingiverse.com/STTrife for posting this, i wanted some variations that were larger and fit the existing locking locations.  These are printed and can be stacked with existing storage boxes.  See his excellent write-up for more details. Feel free to hit me up if you have questions or other variations. I have a couple more coming, but need to finish printing them to make sure they are good to go.
UPDATE: 2019.09.23
I added in the double deep, double wide, double tall version with variations on the drawers.  More to come, need more printers to print faster! Picture incoming as well once complete. Moved the handle on Rev2 versions to the bottom to remove supports for larger drawers and allow a third label to slide in.
UPDATE: 2019.09.23
BoxMiddleMiddleDblWideDblTallDblDeepDrwrDivRev2.stl had a flaw in it that prevented it from fully sliding in.  I notched out the problematic area and it works great now. Let me know if any issues arise! Stay tuned for another container that will bridge the two…