Thank you Bram! The rear axle (wheel bearings / brakes / suspension / etc.) is assembled. That bearing race came out of the axle tube pretty easy with a slide hammer.
The hard part was to achieve 500Nm on that hub bearing nut on the rear drive shafts. I managed to destroy two workbenches when using a 2m tube to get good leverage when following that "just bear down on it" advise.
The big wise ripped off the corner of the workbenches. Had to reinforce the tabletop with sheet metal.
Regarding the front wheel bearing play / adjustment. According to the MB Workshop Manual, 200Nm should be applied to the inner nut. Then it should be backed off at the same time as checking the bearing play with a micrometer setup towards the hub. Until a certain value is achieved. Then the outer nut should be torqued to 200Nm aswell.
However, I just backed off my inner nut 1/4 of a turn. Then torqued the outer nut to 200Nm. Read it at several places (gwoa, pointedthree etc.). But I believe that it might have got too tight still. Would be great if that link started working again.