I recall reading about your recommendations for this but with my cab(s) being a little different when about it based on what I thought made sense at the time. What that was, I don't recall exactly. Old age I guess
The differences being that horn and woofer do not share the same space in my cabs. Also, I went with a rear porting arrangement. I would imagine that that same plan would apply though.
Now I just need to pull one of the woofers and see how I went about it.