AN vs NPT info?

You might look at Russell and Aeroquip, both offer a black smooth hose with a rubber appearance, that is good for everything but P/S and brakes, that uses a barb style of fitting, that litterally pushes on and you are done. Hose is available in ugly blue or black.
It is less expensive then traditional AN and braided to boot.
Many of the adapters from AN to NPT are sold only in red and blue. If that does not work with color theme, there are tricks out there to remove the anodizing, leaving a natural aluminum finish.

http://www.russellperformance.com/mc/hose/twist-lok.shtml