I can see the Stimson being painted something like that.
Wow - Metalflake green-gold - Not hit my radar but now you mention it - Originally it was painted purple velvet so maybe a dark purple in metalflake with gold wheels & trim would work - Like an all-out 70's theme - I still have a pair of flares that Mrs GN made for me to go with one of my cars - I just need an Hawaiian beech shirt for the full outfit