Beyond aesthetics, it's easier to confirm lug bolts are all in place if the tips are flush with the face. You can pop clean caps onto previously loved long lug bolts, or so I heard. Snapping lug bolts aren't a problem in California particularly if you apply anti-seize to the threads and cup. If you mind who touches your lug bolts and carry a $15 Harbor Freight torque wrench with the jack, they'll never be over-tightened.

They are 107 or 126 prefix wheels rather than 124 prefix, right?

Just curious, is it an MB Behr, after market Behr or Nissens radiator?

Sixto
87 300D