I am a firm believer in credit where credit is due, so here is my (unaffiliated) plug for H.E.L. Performance USA. (
www.helusa.com). I heard that some people had problems getting custom shops to match the female fitting on the lower hose of the old CBs, and having a 1972 CB750K2, I was worried that I would run into the same.
So I sent Craig at HEL Performance my old brake lines and a short note explaining the unusuals (20 degree bend in the top; etc.). The next day he calls me up, gets my billing info, and turns around a full two-line set within 24 hours, including stainless bolts + shipping, for $95. The whole transaction took less than a business week and the fit/finish of the lines is fantastic: the right length, the right fittings, and a nice black finish to resemble the old rubber lines. It's always nice when a business takes the time to do things right and appreciates your business. Big ups!