EFI fuel tanks

[turbostar]

Hi friends,new guy here.Getting ready to start a project with my 65 SWB that has been in the family since new. I just picked up a 95 Roadmaster that will be the donor for the drivetrain. These have the same drivetrain as the Impalla SS. A 260 hp LT1 with a 4l60e tranny. I will use the Roadmaster drivetrain with the EFI and factory computer and sensors. Where I could use some help is with the fuel tank. Does anyone know of a factory tank with the EFI in-tank pump that will fit under the rear of the bed where the spare goes? It could be for a TBI or multi-port as I could change the pump if it were TBI. This may have been asked many times but I know finding a fuel tank to fit there would eliminate one problem for all doing an EFI swap.