I have a 2000 F-150 Scab 4x4 5.4 6.5 Bed with an ungodly amount of rust.

The floor is almost gone, the seat will flex the floor when moved, I can lift the passenger rear corner of the bed up several inches, the tailgate doesn't really fit in between the bed rails properly, it is just bad.

What I am trying to figure out is if it would be better to buy a rust free cab and bed, or to find a good truck with a bad engine or transmission? Which would be cheaper to purchase, which swap would be easier to do, where do I need to look other than craigslist for trucks with blown engines? I assume scrapyards would sell whole cabs if I could find one undamaged.

Is it potentially viable to repair this rust damage without a new cab or truck?

Drivers Side:











Passenger Side:



Bed Underneath and Rear Passenger Side: