63 Valiant disc brake swap kits?

Alright, about to pull the trigger! DrDiff, maintaining SBP and 14" wheels. Getting conversion, front end rebuild, and all the lines. He didn't have rear brake rebuild for small rear end, so, I'll have to run that down.

Yell if keeping SBP, 14", and small rear is a big mistake for reliability or parts availability.

I'll try to remember to take pictures and post as I'm doing it.

Thanks again for all the advice, I really appreciate it!
Steve