Chad, an ideal source would be a car in a wrecking yard from a dry climate where the chrome does not pit. Some parts from the 73 LeSabre and Centurion will swap OK. Making parts work from other years will be unlikely, there was lots of variety on trim items back then to make one model look different from the next. As a guess, parts from a 74 might interchange better than other years from the early 70s.
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