Help with 1964 Barracuda in dash speaker parts.

The bracket cudamark has pictured in post #7 is part number 2217363. "Plate, Instrument Panel Speaker Mounting."
Those are for Darts and Valiants/Barracudas only. Mid size and full size cars show different part numbers for '64.
Google or Ebay may turn one up if you can't find one here on FABO. Or make one if you're not going for a 100 point restoration.