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

[FOR SALE] - **REBUILT** Kelsey Hayes Disc Brakes For The 65-72 A Body Line Of Cars.
Ok, let me be "salesman" here and show you what i have, for your consideration.

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.