This guy's Channel might be helpful.
he addresses some things which I have not seen shown before... including covering a shift knob... etc.... so check out not just this one video...

https://www.youtube.com/watch?v=IaSm3zoWrAo

shift knob:

https://www.youtube.com/watch?v=t5tsYDh4jDQ

hand brake lever :

https://www.youtube.com/watch?v=Ze4GnPROaLs

dash board two piece :

https://www.youtube.com/watch?v=w5bdFSBa81I

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1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/showthread.php?threadid=10414

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

Cesar did my armrests for W123. Impeccable work.

https://www.youtube.com/watch?v=1gLMDHyE6Yw