Side note for your analysis paralysis, I’ve used a few box sets and can give opinions. Milwaukee is too expensive and the connection system is irritating and overcomplicated. Klein and stanley are both a lot more flimsey than the major sets, but I still haven’t broken my stably box after several years of abuse. It just bends a lot. The FLEX toolboxes seem like the highest quality of the bunch, but I have no idea how much they cost. If I recall correctly, they’re also slightly smaller than the toughbuilt and Milwaukee, in a way that makes them seem more convient.

I looked at some clones by Keter, but the quality seemed like a major step down for not much of a discount.