Some of my "helpers"
1 2T come-a-long
2 2T chain falls
1 very long 4X rope pulley arrangement
4 2T jacks
1 12T jack
2 scissors jacks.
2 very long 1.5" nylon rope
1 long 1" nylon rope
several various lengths of case chain

I also have 'points' in my shop ceiling to hook up the chain falls

My back - no problems now since I use my "helpers".

Since it next to impossible to find help when I want to do something, I figure out a way - my car body went on with one chainfall and the come-a-long;