Give Jeff a shout at 521 Restorations. He will work with you. I have bought two tanks from him now and will continue to do business with him. He is extremely fair! Tell him you are a FABO member for a little extra.
http://www.521restorations.com/index.pl?page=abody&sub1=Fuel&sub2=Fuel Tanks - Spectra Premium
Jobber:
http://www.521restorations.com/index.pl?page=abody&sub1=Fuel&sub2=Fuel Tanks - Tin Plated