67 – 68 Slab Side Disc Brakes

I have never owned a 67 or 68 slab side Chrysler, but a friend of mine is considering buying a 1968 Chrysler 300 with factory disc brakes. From what I recall, those were equipped with Budd brakes, and previous posts on this site have suggested parts are hard to find for these models and that there might be other drawbacks to this Budd design. Could someone with some knowledge let me know more about the availability of parts for these systems and anything else I should know? For example,...

67 - 68 Slab Side Disc Brakes