This is probably a bit late for your suggestion, but this is what I did. Tank was about $200, and is dual purpose, regular or EFI. 50’s Chevy sedan side fill. I did go way overboard on making the in-bed shield, but I don’t plan on hauling much except for butt. Just didn’t want it to be like the usual center bed or fender fills.
Chip
'Rusto-Mod' '51 Chevy 3600 5 window | C4 Corvette front/rear suspension & drivetrain | everything else looks old and stock '92 GMC Sonoma GT #15 of 806 '91 GMC Sonoma GT Extended cab 1 of 1 Trucks, Trucks.....and more Trucks