68 Dart to 74 Dart brake swap

Am planning on putting disc brakes from a 74 dart on my 68 Dart

my tir rod ends are crap at the moment.

I have, or will have the arms off a 76 dart. I have Spindles from a 74 ( but I can get the spindles off the 76 as well if that would be better or if there is no difference)

After swapping though, should I use tie rod ends for the 68 or 74/76? The auto parts store has them listed as separate parts with a substantial difference in price.

if I use the 74 / 76 tie rod ends, do I need to use the center link and what not as well?