Picking this back up..
I ordered a B&W Class V hitch receiver for the truck and began to mock this up. First I wanted to see what holes aligned (typically these will bolt right up) and second I knew I was going to be going from a dual tank setup to a single Blazer tank in the rear and wanted to make sure everything was accessible and cleared after relocating the frame supports.
I also am planning on running the Sport bumper in the rear inside of a larger dropped bumper. I picked up a drop bumper that is in mint condition in case I change my mind, but I like how clean the lines look on this rear bumper. I had to throw it on to get an idea.