Rims for KH disc brakes

Are the parts all OEM,MOPAR?
Or are the rotors jobber and the wheels aftermarket?

I have no issues with 14inch OEM steel wheels, Wheel Vintiques Rallys 15 x 8, or 14" ETIIs ; onto 1970 Duster KH rotors/hubs/calipers.
Back in 1971, I tried to put some steel slot-mags on. That was a no-go. There was no recess for the calipers. They woiuld bolt on ok, but they wouldnt turn/spin.