the black track in the background might not be that useful - the spotlight in the foreground might be available.
Here you see two of the tabs still in situ - the white grid is almost certainly available and all the black track is free to go. None of the screens or any of the other stuff are up for grabs as far as I know
I don't know how many of them work etc.
These are good to go.
The next image shows the spec
You can have this!
Not sure if you can grind these rods out of the ceiling or unscrew them
Top left you can see a bit of the grid bars - I think they are good to go too - they would love you to remove them I think!
This shows off the quality of the runners. Very high!
Another view showing the second biggest Acre Jean drape
Close up of label on the biggest tab. This one is in a heap on the floor ready to be chucked in a skip!