which efi fuel tank?

I have an idea for my car but it may never happen.
The spare wheel and tire don't fit down in the well anyway so I thought to just delete the spare well and flatten the trunk floor or even raise it a couple inches if necessary.
The space saver spare from the right model Lincoln Town Car would be anchored in there, fuzzy grey cover and all.
The fuel tank in this plan is robbed from a 96 Jeep Cherokee. 15 minutes of measuring suggested it would fit between the A-body frame rails, filler neck close enough to work, etc..
The 6 cylinder version of this Jeep fuel delivery uses only 1 fuel line, pressure regulator at the pump/sender assembly. That single fuel line, along with a quiet electric pump, is the selling point for me.
Until its proven to work its just an idea though.

I've had the same idea. Plus the tank is plastic. But, I'm at the same stage you are, just thinking.