Roller jacks.....

I bought a 5 ton from snap-on in 1980. Trouble free jack since new. Not so pretty anymore, some new paint would make it look new again. Sounds like a good retirement project.
It is very heavy cast iron wheels and lift arm. Steel frame and easily removable handle. Very stable and lifts without effort.
I toss it in the truck on occasion but it is better left in shop on concrete.
If you ever run across one of these old jacks be sure and get it as it will out last you.