I did mine the weekend after Thanksgiving. Pretty straightforward. Got my O-rings and copper washers from Rusty. Borrowed socket from a friend. Did each injector one at a time starting on #6 - 5 - 4-.... You must keep in mind the torque spec when tightening.
Goodluck

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1987 300SDL 314K mi, counting; #22 Head
1999 E300Turbo 405K original miles
1997 E320 180K mi (Son's)
2002 ML320 (Son's)
1998 S320 140K mi (Son's) sold
1985 300SD 311K mi
1984 300D 324K mi (killed by a hit-n-run turd)
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