The Galfer braided stainless replacement lines that I use come as a two-line set (front), which replace the OEM three-line, eliminating the line joint in the middle of its run. The plastic sleeved lines are available in several colors — I choose clear or black, depending on my mood, I guess.
The kit includes new bolts and copper sealing washers, and are clearly marked at the master cylinder attachment end. These are high quality items and and cost about $100 for a front and rear set. The peace of mind, however, is priceless.