Do you have a picture of the car? From the sounds of it I think the black would look better and not clash with the car. The Rushforths are a great choice. Nice products!
the sumblime green and white color combo i think is enough. I would go with black calipers. ...Red ones- (i think) would make the car look to busy and take away from the color combo.
but again. i would like to see pics to give a better opinion!!!