Yeah i did y grills myself. I even painted them the same color as my car hehe. I also shaved the chrome off the top grill and painted to try to mathc my car.
I am eventually getting skirts and a rear valance. I should be getting the valance for my birthday which is in April
I will eventually paint it but It will be all at once, no need for having one piece painted and hte rest not.
As for the durability it seems to hold up very well. Its abs plastic so it has some flex unlike fiberglass.