Disc brakes

I ordered the calipers online from O'Reillys (the retail locations don't usually have them in stock, bu they can order them). Summit Racing carries the pads, and made-in-USA slotted crossdrilled rotors. The flex hoses are available but hard to find because the parts books don't list them properly (the stores will keep trying to sell you the drum brake version). To avoid frustration I would try a specialty vendor like Layson's or Year One. The same thing with the master cylinder -- if you don't already know what it should look like, it is easier to get it from a specialist, though you have to pay a little more.