I guy near me is parting out a 98 E300 with 123,000 miles on it (due to a "fried computer"). I thought it might be a good opportunity to stock up on some parts for a rainy day since I own two of these (one with 86k the other with 158k). The only thing I need right now is a duovalve (starting to act up on the 99)....but I'm glad to stockpile parts I'll eventually need.

What would you grab if you were in my shoes? I'm especially interested in "likely to fail/expensive to replace" items.

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 159k miles
06 E320 CDI "Rutherford", Black on Tan, 178k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 75k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife