a re-shell is ok (to me).
But obviously it's extremely important (over 100 people) to you.
- Id be very disappointed in those people you engaged - over 100 - all that time, money and effort.
Even one of them should have AT LEAST questioned silly things like this one. It could be an aberration (earlier visors on a 72 aust build - esp late 72) - but it would be just that and should have been at least noted by - even one of them.
72 aust builds had a lot of minor differences that should be picked up and pointed out to a client, if your going all out for authenticity
(personally - I don't care, but ive never gone out of my way - in this sense - like you have. Your car is a very nice restorer - love it! - not fussed re the Stillwell or 72 stuff!)
(your next prob will be finding a pair with the centre clip - not sure if escorts are the same - they are hard to get. The earlier ones you can get off ebay UK and were used in the facelifts)