Might want to consider what your time is worth.
Lots of effort required to part out.

Big parts hard to ship, and you have to deal with the guy who wants a smaller part, asks for a quote for shipping, and after you remove it, box it, weigh it and respond, they tell you they can get it for a dollar less at XYZ.......

Right now, scrappers are paying close to $300 for a stripped W124 with engine in place. You can probably get another 500 to 1,000 for parts, but your going to have a lot of time invested. If you look at it as relaxation/therapy, it's no big deal, but if your time can be applied elsewhere for money, parting is not a good deal.

I've parted out a lot of cars, but I'd be real reluctant to part out a decent running, good looking car, the time/value part isn't there. Fix the minor things, then sell.

Now, if you wanted the interior (or other significant parts) for one of your other cars, then parting out makes sense.

Jim

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14 E250 BlueTEC black. 45k miles
95 E320 Cabriolet Emerald green 66k miles
94 E320 Cabriolet Emerald green 152k miles
85 300TD 4 spd man, euro bumpers and lights, 15" Pentas dark blue 274k miles