I've seen alot of HF 56" rollers in hangars along side snap on boxes. I'm impressed by the HF boxes. Only hesitation is that some guys report receiving damaged boxes. If time is of the essence, that may not work for you.
I've also seen many "industrial" boxes- kennedy, list, but mostly lista with wooden tops. They are what are used in the a/c factories I have seen.
In the old days, when guys in the factory had personal boxes, they attached thick aluminum boiler plates to bottom of the box, then reinstalled the casters with long hardware. This gave them the rigidity they needed to move heavy boxes across bumpy floors.
My advice to an a/c apprentice is to buy snap on hardline tools. That is what is used across the industry. The box you store your stuff in is secondary.