https://www.ebay.co.uk/itm/72-Stain...-Bench-Tool-Box-Chest-Cabinet-12/223315603185 I got mine like this one from their outlet shop on Ebay - some are damaged on the front so avoid - but many have small damage on the sides or rear like this one appears to be - great units, very solid, 72" wide.
Whats the difference , all made in china (probably lol) I am a motor vehicle technician and i have worked in bmw , jag , ford and Renault dealerships and guess what , not everyone had a snap on box. I personally have a mac system but i would not hesitate to use some of the lesser known stuff for a fraction of the price at home. Your money and ego tho , good luck! Puddy : )
I'm retired now but I still buy 'snap on' for my tool box, my grand son has just started working in a garage and has been round and stuck his name on all my tools, he said when i'm pushing up daisy's the whole set is his (cheeky sod)
Leave them to him but stipulate in the will that he only gets them after a series of increasingly embarrassing challenges.