Can't say what will fit, but keep in mind filler necks, pipes, inlets, outlets etc are just soft soldered into the tank it self. It's relatively easy changing or modifing that stuff if you find a tank that fits the space you have. Filler necks can also be cut and joined with a section of rubber fuel hose to help the fit.
Be sure you inert the tank thoroughly if you go that route and take a torch to it.......Bob
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Bob Beck
39 Chev PU
69 big block Corvette
55 Buick 66C
57 Buick 46C
55 Olds S-88
56 Chrysler St. Regis
AACA, BCA, WPC, USHGA