65 Valiant 1 to 2 port mast cyl conversion

I was going to put a 2 port master cylinder on my 65 Plymouth Valiant 4 door. Would the master cylinder from a 67 Valiant, non-power drums work? What all do I need to change to make a successful conversion? I know I need a junction block. I think they sell them at Year One. Is there any particular year/model I can purchase the lines that will fit right up? Will there have to be any mods to the brake pedal?