I thing thats a good idea!!! pull all 8 plug out and stab then through a card board box, in order of the way they came out. and then take a pic or a couple of pic's of them.
They sure don't look oily to me, a little rich maybe but looks like its firing.
the ohm reading look ok but some one mentioned that the wire could be rubbing some were. Thats a A Good Idea! give them a good look.
That list looks good. you need to keep going back to it, it will remind you what still need to be checked.
lets see all them plugs:coffee2: