Just did mine this morning -- all went well except for the brief scary moment when pulling off the oil supply pipe seal (pic #14). It shattered into three pieces that, fortunately, I was able to find, extract and reassemble (to confirm I had them all) with the help of some extra-long extra-skinny needlenose pliers. That sucker was more like
Bakelite than rubber after 138K. It was also the only piece I sourced from the dealer.
Anyhow, no leaks, no more oil-on-header smell. Thanks for the write-up and pics.