Adamzan
Thanks I'm quick to most tech but this site is a bit tricky on my phone, will try to search u and look for it and Ty.
Did u run an external cooler also?
Bartine
That looks very promising.
I've used some permatex type formable liquid (about $100 per 5gal container) and I've also used the cans of the spray rubber sold at home improvement centers (mostly marketed as roofing patch compound) and they both will overcoat well but the special order permatex is really superior to anything I've ever seen at preserving/bonding metal and wood.
What you've got in the last pic looks easily repairable and I'd think you pulling the tank and spending 160 welding and then undercoating it would restore the truck to many years of service left.
That is good cleanup work for sure.