I found both the filler and vent hoses locally. One at NAPA and the other at O'Reilly. It wasn't cheap though. You might check again.
Radiator hose isn't fuel rated, and will eventually start leaking.

Cool factor both for boats and the truck. Nice digs. thumbs_up

Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.