Just got a 73 Z, low mileage, single owner, very little rust, looks straight from what I could see laying on the ground in the bright sun. Took it home and got it jacked up to remove the old undercoat and hunt down hidden rust and this is what I see

Obviously I need to get the straightness checked by a shop but my question for veteran owner / restorers is : have I made a huge mistake?

Looks like someone may have tried to lift it with a misplaced floor jack a time or two.

Dennis

Don't forget the couple rock dents, well at least it can be fixed.

I'm not going to lie, those floors are done for in terms of ever looking good again. I would suggest replacing them entirely, but you could probably spend a weekend pounding those craters out with a good heavy lead shot mallet to get them close to spec. Either way, get your car's dimensions checked out to make sure you don't have bigger fish to fry.