I only pulled one motor in my life, using 3 tree trunks about 12 ft long, cut, and carried up from the woods, chained together over a 64 impala with a 283 and a 2 speed dura-glide transmission.
An old farming neighbor stopped by to laugh at it as I explained to him what it was for.
About 2 days later he stopped by again, looked around, saw the posts in a pile on the ground, and said "it didn't work, did it"
Then I showed him the 283 laying there on the ground, and the "new" 235 straight 6 sitting in the engine bay already attached to the dura-glide and both bolted in position.
I had pulled the motor/transmission together, winched the car out of the way, set the old 283 aside, bolted the 235 and transmission together, raised it, winched the car back under it, dropped the new engine and transmission in, and bolted it all back together, all without a load leveler
I certainly cannot claim genius, but I'm sure it wasn't all luck those things came apart and went back together so well
I have been studying into a leveler so please don't take this in a wrong way. I would actually rather have a good one along, but on my budget a number of those things isn't always an option