Don't let peoples opinions stop you bud. It's YOUR car.
I don't like the covers either but that's me. I have brembos so have something nice to look at behind the wheel. The foliatec kits for painting calipers seem to be ok and don't discolour with heat too much.
You can upgrade to 19s cheap enough if you aren't too worried about brand names or weight of the wheel.
The brakes are pricey and unless you track the car a lot probably unnecessary. Look at upgrading the pads and that'll make a big difference.
There is an infinite amount of parts available. Sit back, take stock and decide what look you want to go for.
I like the idea of the orange theme actually, sounds good!