Funny thing about those grocery cart wheels.
When you get them home and strip them down you will invariably find about 2 miles of long hair packed inside.
This is where the shimmy and squeaks come from
But the older ones are 5" diameter, beautiful rubber. Removable axles and double row big ball bearings. Good bearings in the swivels.
Sears sold what they called a garage workbench all through the 80's and into the 90's, and maybe even still. They came in several configurations.
When they put a decent model "on sale" I looked up if I could the, best for our uses, shallow drawers separate.
I found out the drawers I wanted could be had reasonable.
I ordered my stuff and had it sent to the nearest store (free to ship that way).
Assembling it, I found most parts were good enough but some were too thin. So I got some sheets of 1/2 hard aluminum and reinforced the back and the sides from inside (that hold up the slides).
I took a piece of 2" schedule 40 thick steel pipe (plain pipe no zinc) and split in in 1/2 the long way. I used this to make me frame. Gave a nice rolled appearance.
Some extra steel for support where the sun don't shine, and a piece of bent safety handrail tubing dropped into larger pipe welded on, made me a removable handle.
Using the extra slides from the deeper drawers I took out, and 1/8" plate steel (safety kickrail) I made a huge bottom drawer with expanded steel bottom, just to take up the extra space.
Its been a a good box
yours Scott