sbp front disc swap for 73 dart w/ 10" drums

That looks great, man. My car is a 73 though, just to be clear. Will this set up still work? Any other mods beside lower ball joint? And, do I get a lower ball joint for 73 or 72 and down? Alignment needed afterward? Lots of questions, but I want to do this once with no hassles or surprises. Thanks.
I will just say thing, hemi7gtx is straight shooter, I've purchased from him and paid via paypal. before the funds even fully cleared my account, I've had my packages, every time. Great guy