Fuel tank from later model 'Burb??

[BK72BURB_3/4Ton4x4]

Same boat...running a built 496 with a 21 gallon tank and broken fuel guage. Not a matter of "IF" but "WHEN" I don't calculate the odometer correctly and sputter to the side of the road out of gas. (I'm looking for gas every 100 miles)

Also looked into the ECE 28 gallon stainless tank with a $1k price tag. Gorgeous tank and EFI compatible but not much more headroom than the 21 gallon tank I have. My '91 TBI Suburban has a 30 gallon tank, have not really compared the two side by side but could take some measurements if anyone was interested.

Let me know if you find another source in the 30+ gallon range, have been looking and not found one.

Brian