If your looking for the engine universal accessory braided dress up kits you can buy them at:
Advanced Auto parts
for about 30 - 40 bucks.
Those are fake lines made to look as if they are real. They slip over your existing vaccuum hoses or any misc hose you want to put them on.
If your looking for the steel braided lines that require AN fittings you can order any existing Dash and AN end fitting from Summit and JEGS which also sells the engine dress up kits which I had mentioned at the beginning of my reply.
The universal sleeve kits can look good but the real thing is better. You can tell if they are real or not. I have seen the sleeve kits done really nice but in the end it's just an engine dress up. As for the real braided lines I would have a person who is qualified do this. It will also take a lot more time away from driving the NSX around.
I will try to tally up some pics and then you decide.