Can I Survive On Scrap Metal For 7 Days?

After spending a few months last year getting into scrap metal recovery, I started thinking to myself . . . if I wanted to be completely nomadic (live out of a truck, travel the country, etc), could I earn enough from scrap metal to pay for my minimum daily expenses?

Today starts the 7 day scrap metal challenge - I am going to live exclusively off of the money I earn from scrapping. Starting with a truck, 1/4 a tank of gas, and not much else - I'm headed out tonight to pick up some scrap! Wish me luck!