Drums to disk swap, small to big rotors ?'s

Your 74 Duster should have the new style k member that has the sway bar that passes through it
Hummmmm, I should have also stated that it's a /6 ready for a V-8 (360) swap. Should that be a problem?
I don't recall it to be. (Just wanna be sure before I leap.)
I gather that I do not have to swap sides with the spindles? OR should I?
Which one would be better?
Both brake set ups are complete.

(Good gravy, I have never asked so many questions before.)

I just went outside and looked. I have no swap bar front or rear. The K-frame is the one that has swap bar that goes through it. Like My '73 Cuda.

Thanks dgc333