Try The Parts Place Inc
They do have one - part number EL2308Z - (sorry, I can't provide a URL to the description)
It looks like the exact same as what I found at Hubbard's.
according to the body tag: (if I'm reading this correctly)
Build Date: Third week of November, 1965
Impala SS 2-door coupe (V8)
Arlington TX plant.
Original Paint: Evening Orchid (currently Crocus Yellow)
Original Interior: white/black (currently Black)
Factory Air Conditioning
not on the tag:
396 TurboJet (non-matching number)
3-speed, Automatic Transmission (TH400?)
12 bolt, locking rear differential (3.30? gear ratio)
Tri-Volume Horn (GM Accessory)