FWIW I'd do some research in Australia and talk to some Aussies about their roo bars. One of the surprising things to me when I cruised around Australia several years ago was that virtually every vehicle outside of major cities had a massive steel guard on the front that extended out past the sides. Also, in some places there was a dead kangaroo every 100 yards along the highways, big ones that looked about the size of mule deer does. Those people know a lot about bumper guards and theirs are bigger, wider and more massive than any I've seen in North America.