Need 65 Barracuda info ** Updated **

The issue would be it's a unibody, so a lot of structural integrity is in the floors. It would matter just how much glass is in the floors. You could also just add frame rail connectors and leave the floors. If it were me and the floors were good and I didn't think the rust would continue, meaning it was removed properly before fiberglass was laid, I would leave it and put frame rail connectors in. Assuming a lot here but I'm flying blind as they say.