Dude in my personal opinion, I think your trying to build your car to impress us. Its your car, if you want to paint your car puke green, and you like it, do it. People here have alot of different opinions on these types of things and you'll get a million people telling you how they'd build it. But in the end, your gonna be the one to deal with it. So build it like you want, purple seems ok, but if your running stock brakes, why paint them some color that is a poser. My car has black brakes, cause its simple and is clean. They are stock, so why paint them blue or yellow or red? Or what about silver? Thats always clean. Your car is super clean,and I personaly like the unpainted lip and grill. Goes great with your carbon hood. But its your car, so do what you want.