If the caliper is all your needing, you can buy them new for almost nothing at about any part store, I bought 2 chevy monte carlo calipers the other day for under 11.00 bucks each
I've found some but you have to replace hubs rotor and all. We were planning on building ones that would work with what I have on my pos axle I should have never built. It's a 78 D44 8 lug out of a F250.