May be too easy (especially since I have all the double flaring tools in house ) but I used preflared lengths of brake line from my local NAPA on my 46. I bought the longer lengths and installed those to figure out what shorter ones I needed, that was with a dual/split master cylinder under the floor. I also sourced DOT listed teflon/ss braid flex lines for the 3 flex lines, pedal is rock solid… not related but I have ‘54 bendix front brakes on my truck as the “previous owner had installed” a new rear end with bendix …. Huck and bendix didnt mix well on a worn out single master….
