Wow. I thought my project started rough. I am looking at the rust and thinking that you maybe want to go with a fibreglass tub. If your firewall/lower cowl is OK then maybe you are going to be OK, but man that's alot of rust. Just saying by the time you get done paying for all the replacement metal, it maybe more economical (and less of a nightmare realigning) to get a glass tub. I will be interested to see how this get resurrected. Good luck, and good job on saving another from the crusher!