@Mike, did the Shad rack ever arrive? What are your thoughts?
Yes, it arrived. Easy installation. It's not particularly large, though it integrates well with the case's design. It comes with a template specific to the case that permits you to accurately position the holes you must drill. After that, it's essentially washers and screws.
It's solid and fits well, but as I mentioned not all that big. I don't see much of an advantage over sourcing a rack elsewhere, except maybe aesthetically. I'll note again that this was ordered months ago. Shad USA doesn't seem to have their retail act together in this country.