I've shared this photo with you before but I think it's relevant again here for context.
Standard plates are stored by color and type on the right in ArtBin Super Satchel slims, and Bricks by color and type in ArtBin Super Satchel's. I've hot glued 2x4 plates to the front of each bin and attached a brick of each color to the front for identification. Some colors share bins, common colors get their own.
As a Canadian I had a really hard time finding a reasonable price on Stack-On or Akro-Mills storage drawers. Instead I went with a local Canadian retailers version of 60 drawer cabinets. Mastercraft, made and sold by Canadian Tire http://www.canadiantire.ca/en/pdp/mastercraft-60-drawer-plastic-parts-cabinet-0581084p.html . Regularly on sale for 25-35% off and have been made for years. The plastic drawers are semi flexible, and stackable, although a tad smaller than the Akro Mills drawers. However this allows me more drawers in the same space. 10 cabinets, aka 600 drawers, accommodated the bulk of the elements you have made labels for.
Bottom right is reusing old "shoe" boxes from a previous system as has categories like doors, tires, wheels, car fenders, 1x2 slopes, foliage etc.
Any surplus that doesn't fit in it's respective bin get's bagged and put into a deeper storage with a note in it's labelled bin with the quantity/color in deep storage.
I also keep a random bucket I can scrounge through for inspiration.
Keep up the awesome work and feel free to reach out to me if you want more details/photo's or product recommendations from a Canadian. .