Japanese-Egyptian team hunting for new tomb at Giza

[Nerb]

You have to realize that there's not a lot of timber in Egypt.....
.....nor does there appear to be the remains of a lot of rope on the site.

Levitation by wind it is then. 20,000 people blowing down tunnels on all four sides in a mass chant, converging in the centre just under each block raised slightly into a central lifting shaft.

That would be a great recreation to try on an episode for The Discovery Channel.

On a serious note, perhaps there was no department for rope making because ropes would have been used for shipping and on the Nile and would be imported instead of made on site. Also, rope gets reused which could explain why little or none was found on site.