Another ELECTRIC FUEL PUMP help thread. Kill me now.

Has anyone done this with a stock tank? I dont have the ability to add a sump. I believe stock line is like 5/16ths. Thought id go up to 3/8. Any recomendations for line? Honestly will be line and hoses. Not AN fittings and all that. Speedway motors is local to me. Have a Holley blue and regulator on sale for like 130$. Hopeing to get it next weekend. Just trying to do with the lines. As far as I know, a return line isnt really an option for my stock tank and what not.