2018 JGC 5.7L right valve cover R&R

Hi. I am a new member. I recently replaced the 16 spark plugs at 102,000 miles. The right side plug #6 (front to back)had some oil in the spark plug tube. I suspect that the valve cover spark plug tube seals are leaking. Has any member replaced the spark plug tube seals and the valve cover gasket? If so any suggestions in the R & R procedure would be very beneficial. It looks like the wiring harness needs to be released (not sure how its held in place) to provide additional room for the valve cover to be removed. My simplified procedure:
1) Disconnect battery
2) disconnect coil electrical plugs
3) disconnect fuel injector electrical plugs
4) Remove coils
5) Release wiring harness. (not sure how its held in place). I didn't observe any bolts that secure it to valve cover.
6) Lift wiring harness (hold up somehow with a bungee cord?)
7) Remove 10 valve cover bolts.
8) Remove valve cover and remove old seals.
9) Install new seals
10 Do reverse order to re-install components.

If any member has a Tech Sheet/Manual for this specific repair would greatly be appreciated to receive a copy.

Thank you for the help.