Nice,
That's how its done! I've seen this done by Nick Mutton, the author of THE COMPLETE CARPET PYTHON and my friend/cage builder, Ed Lilley does this in some of his cages. He has photos in the book I just mentioned.
ALL morelia are semi to highly arboreal. If you provide the right options you will see behaviors that are normal for the species and I think allowing them to perform these behaviors is very rewarding.
Watching them hunt from a hide above ground is very cool!
I like what I see here.