I have a 68 400HO coupe with two tone paint (originally on build sheet)the car is currently in primer. The bottom was Mayfair Maize and the top Cameo Ivory and the gut is deluxe parchment-pearl. I plan on redoing her in a few years and I imagine I will need that trim, but will have to settle for the vinyl top stainless trim pieces. I don't think it is too uncommon, but that combo you have seems unique since it calls for a burgubdy roof, usually- you see white or black since the idea was that it look like a ragtop car.
1969 Firebird 350 Coupe, Rust free Texas body, formerly brown, now a TA clone with quality spoiler, latching hood and TA wheel; 1969 GTO Convertible Expresso Brown/Parchment(currently painted red). Both numbers matching. My first love was a Cameo White 67 326 Coupe, bought back in 1983, at the age of 17, for $1,200. Been hooked since on PONTIAC! Working on a 67 400 ragtop for customization-Gulf Turquoise/Parchment/400/4 spd! My winter project!
