Looking for fuel line advice for stock magnum EFI and fuel pump

Nic/Copper line is much easier to work with than steel. Definitely stay away from the green stuff sold at auto parts. Can’t flare with regular flare tool. I like -6an stainless braided but need to use PTFE these days due to ethanol and takes their own fittings.

Could certainly run the nic/copper on the frame and short sections of braided to the pump/tank & motor.