I'm not gonna argue with you, anyone that can read a measuring tape can figure this out very easily themselves. The pictures of the MP brackets literally butted against the frame rail and the measurement to the spring being a 1/2" different from factory should make it obvious that you can't have more than a 1/2" offset on an A body unless you literally sectioned out the entire part of the frame rail that overlaps with the hanger, so that the inner part of the hanger could be where the factory put the outer wall of the frame. The hangers would have to be inset almost a full 1/4".
The MP springs require exactly the same thing as what you described for your hangers.
Feel free to measure your own car, and post a picture of the distance from the inner edge of the leaf spring back to the frame rail. For your car to have a 3/4" offset on the spring hanger that measurement will have to be no more than a 1/4". We've had this discussion before, you've never posted any evidence that would suggest you have the only 3/4" front spring hanger ever made. Which you'd need, because the 3/4" offset MP hangers are only offset a 1/2".