LOL !! Thanks Guys !!
Got more progress done today. Passenger rocker is now in and was able to play with the plasma cutter again too.
Not sure what you call this piece, but it seems to be an expensive replacement part that is difficult to find. Thankfully my original piece wasn't totally gone, so I was able to get accurate measurements. After an hour of computer work, I had a program, and 30 seconds of cutting I had a part. Fit pretty good.
I also got my exhaust manifolds back today. Had a friend ceramic coat them for me. I guess I forgot to mention that the old 350/350 combo will be getting replaced with a 2003 5.3/4L60E.