What else do I need?

For your 73+ front disks, the wheel bearings are inside the "rotor", which also serves as the "hub". That is great because you get a new hub w/ every rotor, whereas for early cars the hubs weren't a replacement part and are hard to source. Perhaps you can buy rotors w/ bearing races already installed (check rockauto). Buy the very best wheel bearing grease, since the jar will last a lifetime. At least in the 1990's MbS2 "moly" grease was claimed best. There are special bearing greases for front disks, but most are such today. You must pack the grease well into the roller bearings (youtube). If you just smear it on, they will soon fail. And don't over-tighten, follow the shop manual.