Hey, sorry guys it has taken so long for me to post pics of the damage and my truck. But here they are,
The old Behemoth...

A custom grille, but I have plans of putting the original back in.

I need chrome for the whole thing! lol

66' model 396ci 550 Rochester 4-B Carb

The main part of the rust.

Where the floor pan has rusted from the rocker.

Paint is bubbling behind the cabcorner and on back. Don't know why it's doing that.

This is the really bad cab corner.

It's just rusted out of the rocker here, and a few little rust holes.

Same, pretty much.

This is pretty much all of the damage having to do with the cab. I also have a pretty rusty tailgate that has a few rust holes, but I figure I can save it. Thanks for the replies and tell me what you think exactly of the damage.
Ryan