Ivan has now used 3ds Max software and we made a model of Troy.
3ds Max has a lovely feature that enables you to enter real dimensions,
like radius of the sphere; or model the door with the real data.
We have now some more accurate numbers for Troy's door.
Its volume is 5.219e9 (5.2 billion cubic meters)
and the mass is
5.219e9 m3 * 7.87 t/m3 = 41.07e9 t (41 billion tons).
To the right is a rendered video with an opening of the door.