Don't get your panties in a bunch. You only posted this a couple hours ago. Dave watt knows more about these cars than anyone else. Once he sees this, he will probably chime in. Do you have a build sheet also? The early m code cars were made in batches of autos and 4speeds.

Restoring a car to look "only" as good as the factory made it is like getting a boob job for your wife and having the doctor make them two different sizes to seem more natural