I pulled the left fuel tank out today and didn't find any corrosion but I did find a really nice Snap On screw driver under the tank.LOL
That's just funny as chit.

That poor screw driver being imprisoned deep in the bilges like that for who knows how long and you come along and set it free.
Sounds like you're attacking the old gal with a vengeance and giving her the much needed attention she deserves.
I love reading these kind of action posts.

Any pictures???
Jim