Secure storage pull out racking system ideas wanted

I have a 60"Wide x 58"Tall x 20"deep steel box that securely stores long tools.

I have just been lining/leaning them up against the back wall, but that is not adequate any longer. Too much bumping, banging and somehow procreating going on inside the box.

The current usage allows only 60 linear inches of real estate.

I would like to make some sort of slide out racking, so I can just pull out an individual rack and access one tool at a time from either side without disturbing any others.

If I were to get four, two sided, racks of 18 inches deep, I could have 8x18" or 144 linear inches of real estate. almost two and a half times the storage in the same floor space.

Something like this, just not as elaborate......
https://www.spacesaver.com/wp-conten...8esnuvpkz4.jpg

Any ideas spring to your mind? Even just partial thoughts welcome, to get my brain going. I am just having a mind blank at the moment.

What kind of slider mechanism? Sufficiently strong and able to slide 20 inches. One bottom and top or two at bottom and one on top?
Attaching the assembly to the inside of single wall box, without welding. (nicely painted inside and out already) I could bolt through the sides and back, but not the doors on the front. maybe one strong rail from side to side for front slide attachment.
Thinking it needs to be all metal, with no wood to hold moisture, chemicals or oils.

Thanks for any small tidbits you may have.

The kits for making your own drawers might work.
They're around, and pretty heavy duty ones are available.

Put the slider things high and low on the wall to have sliding racks, instead of on the left & right like a normal drawer.

Look at Linear Motion Slide Rails, this is what they're using on 3d printers - GOOD mechanism. You can make it with Aluminum extrusions if you need metals' strength.

The system you looked at requires a solid floor and absolute
level mounting for the rails.
That system is used for records storage and each unit can become
very heavy. The up shot is a fully loaded unit can be moved with
one finger pressure.

You might look at kennedys roller drawer slides ( replacements for their tool boxes). these move easily and can be made to snap into place. A good load rating also. A set of insert fabricated for them an bolted into the cabinet. Cut the slides mounting slots every 1 1/2"- 2" the length and drawer height can be adjusted to individual tool groups.