I know I'm going to get put on a time out for this, but its easy to drill holes and dimple the metal where needed to make them look the same. :-)
Just have to be aware that the differences are there first
So your reporting that they fashioned/patterned the reproduction doors from one of the suppliers from a 69 example? Or at least the maker of the door you purchased. Your body work skills are likely better than mine- I would fight like heck trying to get the fairly sharp edge and curvature in the inner door without messing up something else
If you modifying one to the other you'll also need to concern yourself (besides the different shape shown in the other thread for the 70 Mach I molding and the three large holes) with the edge of the outer lip as shown below. Either adding or removing based on what ever they did with the reproductions.
69 Passenger example on left - 70 Drivers on right
Shot of the 70 Mach I holes mentioned above