That was one of the ideas I looked at but the one I went with used the Guttering brackets, I made some notes and copied the pictures when I found it and parked it for a future project. No doubt the idea was buried in a thread like the one you highlight, pictures re-posted below.
![[Linked Image]](https://www.tm-img.com/images/2023/05/13/IMGP0010_zpsarg80flw.md.jpeg)
![[Linked Image]](https://www.tm-img.com/images/2023/05/13/IMGP0012_zps6duortik.md.jpeg)