Dual Master Conversion - Help!

I'm sure this has been discussed a million times, so sorry for the repeat. My car '64 Dart 270 is in the shop right now and we've determined that I really need to replace the "hard" brake lines. Seems that if I'm going to do this it is the right time to switch to a dual master. Will a '72 master fit my car? I assume so but want to make sure. Can anyone recommend a source for the lines and block to complete the conversion. Would prefer to go stainless lines if that is an option. Would appreciate any advice ASAP. Need to get the parts on order today! Thanks, Curt.