You will need the special socket to remove and install the nut. A simple slide hammer with fingers for the lug bolts will remove the axle. Don't even think about hammering on the threaded end of the axle.

Also, if the collapsible spacer is not damaged, refit new bearings with the old spacer and check end play while they're dry. If it's too small, you'll have to collapse a new spacer. If it's too large, you can re-use the old spacer, just collapsing it a little more. If it's in spec., re-use the old spacer and save yourself a lot of work. That may be the case, as bearings are made to a standard dimension.

I've been flamed for this before, but a spacer is a spacer, it doesn't matter if it was collapsed to its dimension a day ago or 30 years ago when the car was made.

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'83 300D, 126K miles.