Thanks for your input, Doug- that tank is nice, but looks like it's out of stock until November (seems to be my luck with tanks!!).

I'm guessing a spun aluminum tank wouldn't be allowed to be inside the truck:

https://www.speedwaymotors.com/Spun-Aluminum-Fuel-Tank-11-Gallon-10-x-33-Inch-Offset-Outlet,60364.html?sku=91076257&utm_medium=CSEGoogle&utm_source=CSE&utm_campaign=CSEGOOGLE&gclid=EAIaIQobChMIupHtn9O-6wIVBeiGCh0goQqEEAQYASABEgJaqvD_BwE


1957 Chevy Panel Truck, powered by SBC 350 from 1977 Camaro
Author, Bring CHANGE Into Your Life (a truly easy investment tool)
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