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Veebyes, different schools of thought, you still have one side on the wheels, I would be concerned how the unloaded side of the axles would act when removing bolts. When working on axle mounts I want the axles hanging loose, and control with a jack.
Cribbing like this is more stable than single blocks stacked. I had a stack like this on both sides.
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Front supported by Landing gear AND the jack stands they are sharing the load.
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This is the view from the front, hard to notice, but the pavement isn't level side to side.
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It can be noted in the top photo I have the bottom layer of cribbing shimmed to level, I also shimmed the bases under the Jack Stands level.
It should be noted that once the cribbing and jack stands were in place and the wheels clear of the ground, I put a hard shoulder into both the front and rear of the 5er, it didn't budge.
When using a bottle jack, I place blocks under it to create a steady base and lift on the axle directly under the spring. The axles are not so thin they are going to collapse.