This may be tough. I replaced my entire interior recently using Legendary Interiors. Their gold is listed as Willow Gold which I think is a Corvette color. They sent me a color sample in about a 1" square that when held up against my old door panels it looked close.(My original headliner was long gone) But, when compared in large sections, there was an obvious difference...its more light green than gold. I don't know exactly how the Ivy Gold interiors were configured as far as different colored components. Like, did the headliner color match the seat color? Or, was it more green like the metal dash? Do the sunvisors match the headliner?etc,etc...
The sail panels I got from Legendary were nice but I did have to reposition the mounting points. They didn't have the little metal pieces attached to the back like the factory, instead they had cardboard or fiberboard squares with holes for the clips glued on. I had to peel them off and re glue them so the panel lined up better.
I have a standard interior. If your interior is known original I'd like to know what pieces were obviously different colors or shades.