There is a repro of the 7AC, not the 7AB. You could use the 80B in the 7ABs place. However, the AC cars use the 7AC. I saw the reproduction for 300.00.
That's the only thing I haven't bought thus far. I am actually going to purchase one today. It has to go to the chrome plater anyway. The compressor, clutch, brackets, bolts and other pulleys are already there.