New OEM gas tank for 66 valiant but want 1/2 lines to carb?

Getting my ducks lined up for my 340 swap and now I'm at the fuel delivery stage.

Okay I have a brand new replacement gas tank for my 66 Valiant but I want to run 1/2" lines to my carb. I'll be using an electric fuel pump. Should I use a 1/2" fuel sending unit (if i can find one.) or should I have my own outlets fabricated and use a return line (if needed?). What size AN outlets would be needed for 1/2" lines? Where would the best place to mount the electric fuel pump? I dont want a fuel cell in the trunk if possible.

Thanks