Large Modular Stacking Shelves & Box Drawer Frame

I have printed a lot of different storage systems and options on here, but I never quite found one that really works for me as a drawer or shelving system. The biggest issue I have is that a lot of the modular shelf and drawer options are really small or use a tonne of filament. One of my favourite models to print is the 140x200 Stacking Basket by Eternity Labs, a fantastic model, but I don't actually get on with stacking storage since I have ADHD and so the extra step of having to unstack them to access things can be an issue. So, my original goal was to make a drawer system that would fit the baskets inside. I did, however, have two important goals:1. This model works as either a standalone shelving system, or as a drawer system using for the model above2. The design is modular allowing you to configure how these are put together.3. The design balances strength while keeping filament use to a minimum.4. There is no need for supports, so they are ready to use without post processi