Front end rebuild on 1967 Dart

I’m looking at a Firm Feel '73-'76: H.P. kit; Urethane Bushings, 11/16" Seamless Tube Tie Rod Kit (with tubular upper control arms) Firmfeel Mopar Suspension and Steering
This is so I could pair it with a Doctor Diff disc brake conversion kit that uses 73-76 spindles. It is my understanding I would also need a 73-76 center link for this to work.

VintageRacer...Just to confirm what 67Dart273 said...you can re-use your original 67 pitman, center link and idler arm. If you're going with the firm feel large ball joint (73-76) upper control arms and the Dr. Diff 73-76 brake upgrade & spindles you'll be good. You'll need the large lower ball joints. You can re-use your tie rod ends and adjusters.
Your car never came with a sway bar but that can be added if you like. There are kits using bolt on brackets or if you have the fabrication ability you can weld on the tabs as stated above.
If I'm missing anything someone else will chime in.