Personally, I prefer hard lines over long pieces of flexible hose, braided or otherwise, on my Fairmont, the fuel cell has fitting near the bottom, that point straight back, located a few inches from the rear bumper. I used Moroso 3/8" aluminum fuel tubing, and made a pair of lines with 180 degree curves, pointing forward, that feed a pair of Holley "blue" pumps, then meet at a Moroso Y block. From there a single 1/2" aluminum line go to the engine compartment. This fuel system has been in the car for 35 years, and has worked fine all this time. I imagine my 3/8" 180 degree curved lines have a much larger radius than typical AN fittings , but I can`t see the 180 fittings being an issue, much better than a 90 degree brass fitting, which I often see.
As for the NIckleCOPper line, it`s great stuff. I plumbed my 59s fuel lines and brake lines with that tubing , it double flares very nicely, and is easy to bend to follow the contours underneath the car.