i got mine from maximum motorsports. i know ive got a fox but im going out on a limb to say that they have them for the newer ones too. not sure about the factory fittings, mine bolted right on so im guessing they have the factory fitting.
If I were going to buy new lines, I'd get these - The Stang Gang - SS Brake Lines This is our local club here in the Tampa Bay area of Florida. You can see the quality of these lines.