BEWARE. 67 Barracuda

They're 50 years old. Rust under carpet should not be a surprise even at 20 years old. Same applies to lower rear quarters. Nature of the beast.
Frame rails rusted away is more often those without OEM undercoating. And yes those are the ones that we should walk away from unless they are/were special builds like bb 'S' etc...
The bible states they jostle one against another in the broadways ( Nahum 2;4 ). I see very few front fenders that haven't been punched in the nose. This, like the typically beat up trunk trim, is simply the lack of protection from their bumpers. Again nature of the beast.
Most of the time I cant imagine one being disappointed in what they'll find here. For every little thing they see is needed, they'll see other things that more than compensate.
Other times I realize that some have higher expectations.
I hope you find the one you're looking for.