Ok, then..They also make bondo with fiberglass hairs in it. Ive used it, it works well. If you know how to use it, it will work. Im 99% sure that it will work on the bumper of his car. There is also paint that has a chemical in it that allows it to flex, its the paint that is on our bumpers of our cars. Done right, his bumper will look as if it was never hit, but if you dont know how to use the bondo, it will have waves and possibly not look good.
This is the bondo he needs to do it himself-
http://www.partsamerica.com/productd...egoryCode=3269
This is the paint he needs(they have more colors avail)-
http://www.partsamerica.com/productd...egoryCode=3461