You will want to look at the mid to late 70s B bodies, like cordoba and Fury. They can also be found on early 80 St Regis and Lebarons.
The actual pins interchange between rotor sizes. Hoses are a maybe, depending on how the hose ports in the calipers are set up. Some of the earlier to mid 70 calipers have a hose with a straight end that goes in the caliper parallel to the rotor. Most later calipers have the hose in going in at 90 degrees to the rotor and require a banjo fitting on the hose end., although these can also be used on teh earlier calipers as well. Usually the easiest thing to do is locate a car in a yard, and take everything between the ball joints from it so you have all the matched parts. Since your mixing and matching as you go, make sure you keep notes of what you get from what car so it will save you replacement headaches later.
Simple but more costly answer is to buy the Wilwood kit I'm selling since you already have the spindles. Kit includes the brackets, calipers, and pads. They bolt to the disc spindle and you supply the hoses, 11.75 rotors, and bearings.