3/8 fuel line?

[Sloan66]

I hav a 71 307 which came with a 5/16 fuel line. I decided to see if I could find a 3/8 set at the local pull a part. I found one and have some questions. The line that runs along the frame makes a u-turn right at the pump. Can some one how me how they ran the rubber line from the frame to the pump? Also the line that connects to the sending unit does not have a fitting, just a flared end. The new sending unit is set up to receive a male fitting. How did the factory make the connection?