Electric in line fuel pump mounting

For those running the Fitech kit, Did you use the -8AN line supplied? If so 3/8" or 1/2" sending unit? The instructions show 3/8" but everything I've seen shows -8AN is equivalent to 1/2"
I installed mine with the -8AN line and went with a 1/2 sender. Figured if I was buying a new sender anyways (was only 5/16) I'd go with the larger one. Still use the fuel line even though I went in-tank pump.
I have the like new sender still. Pm me if interested.