" IIRC on the 70-71 E body Barracuda/Cuda models it was available in black white, and I believe gold"
That's probable. The '71 Charger had the textured rear window trim available in black, white, gold and green. I've seen several black sets, only seen one white set on a car, and I've never seen any in gold or green. But then, I can't imagine anyone really ordering rear louvers on a car with a green roof.
The roof would have been most likely body color, the louvers were available is assorted matching body colors, or black as a default choice, louvers will also fit on a full vinyl top equipped 71 Charger, I've only seen one to date so equipped, louvers will not fit a 71 full vinyl top equipped Plymouth Sat/RR/GTX due to the trim/belt mld interference of the louver side piece.....
