I am by no means an expert, especially on the L6, but here I wanted to throw this out there. When rebuilding an engine, it's not necessarily a good thing that everything is spotless and shiny. My experience comes from motorcycles mainly, especially dirt bikes, and when something was clean inside, it was usually toast. The bearings tend to be fried and, on a two stroke, cylinders worn. Eec564, I don't mean to counteract you, as you have stated that there was "barely measurable wear." Just throwing something out there.
That being said, I had a big Schneider cam in a SBC that ran great until the day someone stole the car. Got the motor back in pieces and the cam looked perfect. Of course, that cam is 15 years old.