With that kind of blow to the wheel I would think the spindle could be a problem but not that hard to do it later if it proves to be. They are available for $50 to $100 at salvage yards and no need to do both sides.

Repairs are progressing quickly. I have replaced the lower control arm as documented in this thread: http://www.peachparts.com/shopforum/showthread.php?t=175130

The sway bar and related assemblies appear fine. I'm just waiting on my tie rods which should be delivered Friday. I will pop them in and install the full-size spare which carries the same size tire. Then I will take it for an alignment Saturday.

Since I will need 2 wheels and tires, I have decided this would be a good opportunity to upgrade the wheels to 8-hole alloys from the later E class and C class.

I will run without a belly pan for now and will just wait to get a replacement from a junkyard. Upon closer inspection, the cracked bumper can definitely be repaired and refinished which should save some money.

Here is my revised estimate:

400 4 new 8-hole wheels (justtires.com)
203 2 new tires kumho PS758 195/65R15 (ebay)
045 pair tie rods (ebay)
089 new lower control arm (ebay)
080 bumper repair and refinish supplies
080 4-wheel alignment
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897

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08 W251 R350
97 W210 E320
91 W124 300E
86 W126 560SEL
85 W126 380SE Silver
85 W126 380SE Cranberry
79 W123 250
78 W123 280E
75 W114 280