Need to identify a particular K-member and Pitman

After reading this thread, I have a question.

I am going to pull the /6 and 9" drum K-member out of my 71 Demon.

I want to replace it with the V8 and K-member with disc brakes out of a 75 Dart Sport.

Can I use the manual steering setup that is on the current 71 K-member instead of the power steering setup that is on the 75? Would it be a direct bolt in? Or do I need to swap out a whole bunch of parts?

Thanks in advance!