That is what I had to do on my 62 with disk brakes from a 73 I could not find the correct length with a banjo fitting on one end and the correct fitting for the 62 on the other end so I went to a hydraulic shop that was licensed to make DOT hoses If I remember correctly it cost me around $100.00 Canadian. but it solved the problem.I had some made up locally, braided line with a black sheath covering. Bolted right up with a banjo fitting on 71 B-body calipers. See if there is someone in your area that dose DOT approved lines.