1965 Valiant brake woes

How did you purchase? Are you a dealer? Was there a significant price difference compared to, say, Pirate Jack?
You just have to research your application, call and ask questions. Google search will give a ton of results. Pirate Jack, inline Tube, Classic Industries, Summit, Jegs... Etc etc. Los of info on doing the pick and pull of a 70s disc application. Just depends on your level of commitment

. There's a bunch on here from folks who have gone through it. Retailers matter... Getting one that is responsive and ships in a timely manner.... Good customer service.

I eventually just did everything front to rear with new everything. Rebuilt the rear drums... New cylinders new lines, etc.