Rusty New Yorker on Forward Look pulled these headlight mouldings off a junk 59 Belvedere and is now selling them on eBay. They look like they are in good condition, and could be show car quality with a little buffing. There are separate links for the left and right sides.
Left:
Right:
thanks for making this thread i was looking for the headlights and bulbs and i glad that they have one on ebay that fits in my car.
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Ahhh, the original posting of these e bay auction was from 2004 so these are long gone.
But I have seen others for sale recently. I will find some more current ebay offerings on these items for you. 
John Q