I agree with jekbrown, find someone with a welder and some good metal and you have bumpers! Mine are 3" x 5" rectangular tubing with 5/16" wall thickness and some 3" channel welded to it for the bumper brackets, then its all bolted to my frame with several 1/2" Grade 5 bolts. They're tough and plus I can pick them up by myself without getting a hernia. I can also unbolt them anytime for modifications. When I get a winch, I'll weld on whatever I need to support it and the fairlead.
Will