They can just as well just built a large canal around it, and built large reed boats beside these stones and filled up with water and then kept on building canals to transport away these megalithic stones. No need for advanced lift equipment. Just lots of people with spades, clay to make these canals water tight, and canal ports to eract or lower these reed stone boats. MagI ----------
how did they move the water up hill ? how big does the reed boat need to be, to carry a 60 ton stone block ? and how long would it take them to do it ? and how do they pick up the 60 ton block from the boat and then place it somewhere to use it ? and how do they then move and lift the next one that sits beside it ?
Big enough to displace water equivalent to 60 tons plus the weight of the boat. https://en.wikipedia.org/wiki/Treadwheel_crane
Find out how much one cubic meter reed lift in water and how much lighter stone get in water and do a calculation. Depends on how manye men, clay and spades they have . They make a large canal and will the whole area with water and then handle the stone by filling and removing water in this pond with reed boats on it. They just dig up large walls so it is all is in a large canal and handle the stones under the water with reed boats and then filling and removing water in this large canal. MagI -----
They just made a large canal so that the entire area was under water and connected reed boats to the stones and then filled and removed water to control the stone placements on millimeters. MagI -----