Good post. I am not a wrench turner myself, but yesterday I had replace the grommet for my fuel tank. Steps are pretty much what you described. I had a hobby shop with a lift I could use, so I unbolted my tank first and lowered it a little, then did all the disconnecting. It was a good learning experience for me.
Now however, I got a engine light on. I had it read and it came out to something like "low or no vent pressure". I cant remember the exact wording or the code itself, but the guy at the store told me it either could be gas cap not on tight enough (unless my cap is bad, thats not the case) or that the purge valve maybe bad?
Any thoughts out there?????