If it was my build I would keep it clean and more on the sleeper side. You don't want to advertise you have a street beast. I'd leave the spoiler & chute off.
Is that a JF resin body? Check fitness of all kit parts to the body as it is very thick. After cleaning, wipe the body down with lacquer thinner before painting. DO NOT put the body in a Dehydrator to dry your paint.
Interesting indeed. I may put this one aside for just a bit so I can get on the 66 Mustang Pro Street I've started. I'm already behind on the GB. Thanks.