I'm looking to buy brake line #30 in the picture below, from the pressure regulator to the rear right soft line. According to the PMB website, this is for cars with a VIN lower than 47429 15751, with a pressure regulator with a T fitting on the top.

PMB has them, but I'm too damn impatient to wait the 2 weeks!

Click to view attachment

I don't have an answer but I think, if you want new, PMB is your best bet.
I'm replacing all my lines and PMB was the only source I could find most of the lines.