eBay. I searched for Thunderbird braided brake lines and found a place that carries them and in the ad says you can specify Mark VIII. They said they were a little different but not sure how. Took 2 weeks and they were about $150 shipped. I really like them though. Great quality and the pedal was much less spongy. I did the blue fluid and Cobra calipers up front at the same time but I believe it was the lines that made the pedal feel better.
