In 93' or 94' I purchased an NOS AM radio faceplate for my 69' Super Bee from a dealer. I had the part number, they ran it and found supposedly the last one available. It was on the shelf at a dealer in Virginia (I'm in Massachusetts). I think it depends on what is/was kicking around in the dealership parts departments.

Back in the 80's & 90's I found if you had the part number, the parts department coud do a search for any given part. I haven't checked at a dealer in many years, figure any good stuff was bought long ago.

70 Super Bee FK5 383 4-Speed
68 GTX RR1 426 Auto
70 Cuda FC7 440 Auto

Psalm 37:5: Commit your way to the Lord; trust also in Him and He will do it