Just saw on Facebook that Zahi will soon lead a tour of Egypt. Feb. 15-28, 2014.
14 days, 700 people, and after hours tours of both the Egyptian Museum and the Great Pyramid. You'd need private tour hours with 700 people along. However, they are opening two closed areas in the Great Pyramid for this group, including the subterranean chamber, which I've always wanted to see.
No idea what the cost is.