As you plainly listed and mapped from south to north according to ancient believers....the reason orions belt is reflected upside down is because the
ancients would sit around a pool of water and look down on reflections..which in of course would make the map reversed..makes sense to me
What the OP is saying makes sense, I learned about it in my history class at college. What he means is, the ancient Egyptians drew maps with south at
the top instead of north. This is why the pyramids are aligned to look like Orion's Belt (complete with the visible Milky Way galaxy represented by
the Nile), but only if the map is looked at with south on top.