Date registered: Feb 2011
Vehicle: 1973 220D
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Have you driven a similar vintage diesel recently? The rough idle may be normal. However at this age I'd say worn out motor mounts would be likely.
The electrical problems could be why it got parked for 11 years in the first place. I'd start a electrical diagram and rewire as needed (and you need headlights).
The drivers window gets used all the time so it makes sence that it might need a new motor. The other windows may be more reliable after you clean the fuse box. Disconnect the battery, remove the fuses, give a light sand with very fine sand paper and replace with new fuses. That's easy and it might fix a lot of problems.
Frank Flynn. Poet, Artist & Mystic