Do you have space at home to just park it for several years? I did that with my old w124 then when I had time I spent several months sorting it out, shocks, brakes, curse control, ball joints, wheel bearings, exhaust and some other things. Once I saw the beginnings of rust starting in the roof by the sun roof seal I didn't want to deal with that and sold her. I think it's more of challenge finding something you really want that's in good enough condition to buy. I had purchased my 05 cdi several years ago and transitioned to that a few weeks ago and not having any regrets. Good luck lots to consider.

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92 e300d2.5t
01 e320
05 cdi
85 chev c10