Welcome to the Forum @Bos700. Sadly for all of us, John (aka @jfc77320) went home to be with the Lord late last year. However, after many trials & tribulations, we came up with a new source:
I put this new thread in the "Vendors" forum to make it easy for new folks to find. There's been a lot of discussion about the development of these brackets that can be viewed on this other thread...