My iPod has been dead for a long time, but I finally decided to repair it. The first step, I thought, should be the battery - and I was right...
There seemed to be a coating on the HD bumpers, the coating of the surfaces that were exposed that burned my fingers - I can only think of battery acid. It wasn't awful, and nothing looked damaged, yet, but I am replacing the back cover and a number of other components in order to be certain I don't run into further problems.
The short story is that my iPod started up for the first time in five years (I think it's five years) which is REALLY GREAT! Used the tweezers to pop up the battery cable connector, though - the plastic tool seemed too large/chunky.
I finished. The first time I assembled everything all was working perfectly except for the earpiece - I couldn't hear anything. I saw on another posted question that someone responded that the gold prongs on the the earpiece had to be aligned "just right", or it wouldn't work. Additionally, the metal cover shouldn't be screwed in too tightly. I realigned and was a little less restrictive with my screw tightening - and now I am up and running. I am so happy! I totally ruined my screen and really was shocked that it still worked. Thank you to everyone who takes the time to give advice and assitance!