I've got a 66 Barracuda I am swapping in the rear axle and front brakes from a 74 Dodge Dart so I will have front disk 10" and rear drums 10". All BBP.

I know plenty of this type of swaps has been done. Can anyone share where to find the size wheels they are running and the offset?
Without the wheel size tool I'm not sure what will fit to order new wheels. The 73'-76' front end is (I believe) wider than the 66' set up. (Face of the drum to face of the drum on the original 66' vs. the face of the rotor to the face of the rotor on the 74' set up)
Plus the rear axle is a bit wider at the wheel face to the wheel face with the larger drums vs the 9" X brakes on the 7.250" the car had originally.
Thank you,
Joe