If my 3D model is correct, and I can't see it's a million miles out.
I would agree with you.
It COULD be $1000 of gold raw value in there, but that would mean cutting it very fine in places.
1mm wall thickness over most of it, with a little bit thicker in some corners (as it would be hard to get cutting tools in some deep pockets)
We'd be looking at around the $1200 just for the Gold.
You could cut this down to $1000 at a push, or perhaps up to $2000 if it was a lot thicker in some areas.
Here is the case wall thickness, as it would look, in reality and to scale, with the 1mm approx. in most areas wall thickness (which my guessing felt did not look a million miles off)