Old question, new idiot. C/20-72 disc to 67 drum swap

[Psychohamster]

I have a 67 c/20 with manual drums and I also have a 72 c/20 with power discs complete parts truck. Whats the proceedure to swap the power discs into the 67 manual drum setup?
Will the 72 brake booster bolt up to the 67?
Whats the easiest/best route to swapping the brake system, complete crossmember or a spindle swap?
I have heard about a balljoint/tie rod delema?

Any info would be appreciated.
I looked for archived info, but wasn't able to locate any. Thanks