Thanks Jon, I'd already seen these but unfortunately, 3D recreation of the geo-phys aside, they offer nothing more than what was known back in 2008. The subterranean structures appear to have been clearly fashioned by people and suggest that there are at least 4 different ages involved:

The Graeco-Roman
The 12th dynasty construction by Amenhamet
The first subterranean level
The second, deeper and seemingly unconnected, second level

Does anyone know if Dr. Boulter's submission to the SCA was successful or if it was rejected?

Thanks.