A-body Disc brakes

There is a ton of information out there on this swap, and to me for safety sakes; it seems to be the best upgrade I can do with the car. I have a 1966 Barracuda that I am 3rd generation owner of, and I found disc brakes from a 1972 Duster and my question is, will those fit? They include: Spindles, Calipers, Rotors, Rubber brake lines, Master cylinder, Proportioning valve. All for around $200.

Is that a good deal, and what else will I need to complete the swap?

Thanks,

John