I am going to use a factory bumper and mounts that I cut off of a salvage truck. I am going to weld another 1.5"x3" rectangle tubing to the bottom of the fabricated core support "mount" that is in the 3rd from the top picture on this page. I will put the 3 inch side facing forward. Then weld the center two mounts to that followed by some triangle backing plates behind to give some extra support. The outer mounts will be shortened and made to fit to the frame just in front of the front tires. I thought I had a pic of the bumper sitting in place on jack stands when I measured it all out but I guess I didnt take one. It
SHOULD work. (Lost 3 hours of sleep on it...)