I appreciate all of your insights and replies. Choices is correct. Believe me, I have been weighing them. While I want this car to be as concours correct as possible, it is going to be a "Driven" car. Based on what I've heard about the Repo Wide Ovals, I don't think I'm going to go that route. In addition, I can't imagine that there were that many non-GT '67's that were ordered with Wide Ovals, much less that were built in January, which to me will make it almost impossible to find 3 - 6" wheels dated "7MA". As a matter of fact, I'm guessing that I'll have a hard time just finding one 5" wheel dated "7MA", in order to give me "Four for the Road" of the same size and date (yes, I'm sure I can find one with "7M", but the "A" won't be easy. I figure I'll put one of the 6" wheels with either an original Wide Oval or a Repo if necessary, just to keep the "original flair" for the spare in the trunk.
I find it very hard to agree that "happenstance" resulted in 3 of the original 6" wheels having been damaged at the same time as there is no evidence of any structural damage ever having occurred on this car; and even harder to believe that "happenstance" resulted in a junk yard having 3 of the correct dated wheels as replacements. As rodster noted, I doubt date codes would have been of importance back then".
As far as knowing the "typical roads of the 60's and 70's", I do. I started driving (at least legally) in 1962. My car was ordered by a Dealer in the Suburb of St. Louis where I grew up and lived until 1979, so I am very familiar with the roads in the area (especially so since I started my career as a Design Engineer for the Missouri Highway Department in the same suburb, and it included 10 counties around St. Louis). As far as I can tell (unless the MO DMV come back with something different for 1976-1981), my car spent all its life in St. Louis County until I got it from my Dad in 1991. So, I really doubt that roads were an issue for destroying 3 wheels. While I am not a "Statistician", I am an Engineer, and find the probability of 3 wheels being damaged and being replaced by 3 wheels of the correct date, extremely low, at least IMHO. Although granted, stranger things have happened.
Again, thanks for all of your input.
Bob