[discostu]

It's quite possible to move these stones around. The hardest part would be the bracing of the scaffolding to hold the damn things up, with the right pully system you could move those buggers around like puppets. Stomp your feet all you want but moving multi-ton objects just ain't that hard, it's all about torque and leverage, and that's what pullies and roller give you.

[RightWhale]

it's all about torque and leverage

It's more a matter of time than tonnage. They had to complete the whole structure in 30 years, supposedly, which, no matter how many worked on it would present problems. There would have been more than one set of block and tackle; they would have been fairly close together all around the structure or along one side, all hauling blocks at once. Dragging blocks from the quarry wouldn't have been a problem since they have space to move, but getting up the pyramid would be tight quarters. Coordinating which block goes where and when would have been a logistical nightmare.