CJ, I did try them. I called them over the phone. For the headlight bezel they said they only would sell it with the whole headlight assembly and even that he said they couldn't compete with the dealer's prices. For the sway bay he said they didn't have it. I questioned that they didn't have any W116's he said they did but to them it wasn't worth the trouble pulling that particular part. I told them it was only 6 bolts that hold it on, 4 boltd to hold it to the frame and the 2 that attach it to each wheel.
I will keep them in mind of course.

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member