Depends on the color n if flakes metallic etc....
are u buying the paint or not?
Just paint alone goes from 500+
We painted a 95 ex Candy Apple Green added Metallic flakes
paint costed 650 we painteded so save a grand
ill say stay with ur stock color then paint the top black
or keep it all one color ill b cheaper
So i say 1-3gz
depending on quality
Dont go macco there quality suck u can tell