I must be buff, I am able to compress new shocks by just grabbing it at the top and pulling down on it for removal.
When I replaced the shocks on my W124 I just put the jack under the side I was working on, lifted the car till the wheel was just barely touching the ground.
I then removed the trunk carpets.
I then removed the nuts on the top of the shock and the rubber pieces.
I removed the cover from the lower control arm. I then removed the lower bolt.
I grabbed the shock in the wheel well, pulled down and compressed it, and pulled it out.
I then compressed the new shock (by hand

) put it into position, and let it extend up through the hole. I installed the lower bolt and re-installed the cover.
I put on the rubber piece and two lock nuts.
Lowered that side of the car and did the same to the other side.
Put carpet back.
Enjoy.
It took me about 1.5 hours total....having never done rear shocks on a W124 before.
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