In order to preserve the original from temperature and humidity rise/fluctuation, an exact replica of Tutankhamun's tomb has now been created - but will tourists really want to travel to Egypt just to visit a mock-up? BBC's Rajan Datar reports (and quote Hawass at the end).
Click on link: http://news.bbc.co.uk/2/hi/programmes/fast_track/9786255.stm
[Luxor Temple is of limestone, not "granite"].
Putting it "by Carter's House" as suggested here involves taking the tourists past a huge modern (and incredibly dusty) rubbish dump. A lot of the latter is from the demolition of Qerna village. I think the replica should go in one of the valleys to the NE of the new Qerna village, and create tourist income there.