Greg,
Do you mean a total stainless line or just the braided lines from the chassis to the calipers??
I made my own lines with stainless tubing covered with stainless coil in areas where more protection is needed. I purchased premade DOT stainless braided lines for the chassis/caliper connection.
Purchased the tubing, coil and fittings from Inline Tubing
http://www.inlinetube.com/
and picked up the braided stuff at a local speed shop.
Roscoe