I agree with NM51 about the regulator. As long as you're gonna have a gauge, you might as well have the ability to adjust it.
I spose the material you use for the fuel line depends in part on the look you're after. I've had good luck with braided steel shrouded line and Russel's or Earl's fittings. I've generally stayed with the -AN6 size. It doesn't require the effort to bend like steel line, but then you might lose as much blood while installing the fittings and gettin stabbed over and over again with the braiding.
I'd sure like to see pics of your installation, either in progress or finished...or both.
