Frankencart lives! Mix MDF, Plywood and Melamine, and the undead cart rises to store all your small parts.
Okay plans might have been a bit of a stretch – here’s the Fusion360 file. Free for all! http://a360.co/2tRLpLP
If you’ve got similar trays, you can download Fusion 360 (free for hobbyists, by the way), punch in the dimensions of yours, and the project will update automatically