What fits, late to early front end parts to swap?

I have a 64 Valiant that is going to get a complete go-through. One of my parts cars is a 74 Dart, so I was going to swap the disc brake setup from the 74 over to the 64. I am of the understanding these will fit with no issues, correct?

The next question is, the LCA's on the 74 have the tabs for a sway bar, and I do have the 74 sway bar also. Is there a way to get the 74 sway bar to work on the 64? I'm aware the late bar goes through the K frame while an early one does not. Also, I think the early A is several inches more narrow than the late A. If the late sway bar won't fit, is there a workaround to use the tabs on the late LCA's with a different bar, or ??

Just trying to figure out the options before I start taking things apart.