Hi Ck

Agreed, it sounds simple enough. Those lifters would be fine for the blocks, but what about the massive chamber roof stones?

I think these descriptions are somehow part of the operation or the final stage of the build. Maybe both, then the operation lifters would have been utilized to finish the peak once the system ceased to work fully.

there would certainly be a need for some signalling device to communicate over the distances, shouting just isn't gonna cut it.

There is something in those choices of NSEW for the routes or functions. Understand that and much will fall into place.

Regards

Chris