I went to look at a black on grey 87 300D yesterday. Pretty rough shape. It starts, idles fine, and moves, but that's all I'm able to affirm. It was more than I'd be able to address by way of repairs, but perhaps someone is interested. I'm sure you could take it away for a few hundred dollars. Email me if you want the contact info.

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 154k miles
06 E320 CDI "Rutherford", Black on Tan, 172k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 142k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 61k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife