Started looking for possible paths, leading out of the quarry(s). There are some formidable cliffs they would have needed to get around. I can only use Google Earth , and a Topo of the Giza Plateau, which you have seen many times.
I am learning how to produce height Topo maps. It's not all that easy. Not if you wish to be accurate.
They may have chosen to pull the skids & stones downhill, placed onto a barge, much like they did at all the other quarries. If they had a Funicular system, once the barge at the bottom was engaged, no men were required. There are many barges on the Causeway. This shortens the ropes, as they are in tandem. The barges come to rest, many times, before reaching the top.
Difficult to think, they went straight down, rather than around (?) and up. It's contrary to all other thinking. I stripped out all the building for clarity. By no means am I saying this topo is accurate, though it does warrant further investigation. Need to resolve, did they create the cliff's, or were they already there?