I don't have any pictures of the truck but I had a 87 blazer with 3/4 ton axles under it and I didn't want to touch the bumper, at all. The old boy that did mine up bolted-welded some brackets to the front frame horn, bolted more than anything just put afew smaller welds on there to keep it from budging. Anyways he welded a piece of I believe half inch plate on each side and gusseted it across, between the frames and welded two reciever hitch inserts to them, they hung just below the black lower bumper valance and looked great.
He took the plow frame and cut off the frame-bumper mount and reinforced the back bone of it and at the bottom he welded on the square tubing and gusseted it, I used that truck for five years and never had a single problem with it, other than the damn cables freezing up every once in a while, always keep some aerokroil in the truck for that!
Anyways, I didn't build it and iam not knocking your build it looks stout, just a idea if you get the picture, plus I could unhook it in about ten minutes, just had to remember to mark the cables so I didn't have to readjust all the time. Good luck with it, looks great