I am a little hesitant to post this, but....

I have designed and I am currently manufacturing a solution for the fuel side of these tanks. I have one in my 68 Charger, and all I could find available was the cheap stamped steel units that had no modularity to them. So I decided to go ahead and make a real nice, yet affordable modular "Fuel Puck" for these tanks.

Here is a Solidworks rendering of the parts together on the fuel puck side. The wire pass through is what sets it apart from the other solutions as it no longer has the exposed posts for the wires, and you can get a full size wire right to the fuel pump.

I don't know if this will work in everyone's case, but it's a better solution then what is available now as a separate unit.

Ryan