72 Duster with a Rusty fuel system....how do I avoid this???

He lives in Arizona. I'm in California.
When this project started in 2007, he was just out of college. The plan was to build the car and have him drive it back home. The bad economy made it difficult for him to find a good paying job and to advance in his life. He did move out here for three years and it was going well until he was laid off in a corporate downsizing.
He is a competent guy if he is told what to do. He lacks diagnostic skills but if he ever takes the car back home, he will surely need to develop them!