Friend -
For the front on my '69, I bought 70+ drum spindles for the big bearing. I then bought a MustangSteve Cobra bracket set and bolted those onto the stock spindles. Those will accept 94-04 Cobra 13" rotors and calipers to match OR you could bolt on anything that interchanges with that series Cobra caliper and rotor (think Baer, etc.). You might need to source caliper bracket bolts - Lowes, Home Depot, etc.
For the rear, I bought a set of brackets from Currie that go over the rear bearings and serve to retain the axles on my 8" rear. They let you bolt on a set of 94-04 Cobra brake calipers and rotors for the rear. I'm using a Lokar universal style parking brake cable set and handle to match.
This gives you factory calipers and rotors and sometimes you can find good used stuff on Craigslist.
Alternatively, you could look for Granada parts but I felt like the newer Cobra brakes would be better than something from the mid-70s...
Nathan