Update on the tool boxes...
The seller is very hard to work with and seems inept. I ordered two boxes, they sent four. I left two in the box and contacted the seller who had Fed-Ex come pick the extra ones up.
Then I installed the remaining two boxes and found that the lock is not functional on one of the boxes. At first the seller wouldn't correct the issue - just offered to refund $25 of the purchase price. When I said that was unacceptable, they said they'd fix it if I paid to send the defective unit back to them. When I said that was unacceptable, they said the only thing they'd do is refund me the shipping IF the lock was truly not working.
All this AFTER, I let them know about their original duplicate merchandise mistake.
The boxes fit really well, but are aluminum, very soft aluminum; I am not sure how much abuse they'll be able to take - the locks may be irrelevant given how easy it is to pry the aluminum. Also, they were all keyed alike, and I am suspicious if they have different keying at all.
A seemingly good deal, but I am a bit dubious now. Buyer beware, your mileage my vary.