I'm doing the same thing but I'll use a Super Sniper kit. I put the Aeromotive pump in my existing tank. Had to have a pro weld in a small pocket for the pump. I used braided hose for the fuel lines but steel would work better. You can probably use the stock fuel line as a return and just add a duplicate. Maybe even buy a stock fuel line and use it. The high pressure pumps don't require a big fuel line.