Here is the Ziggurat that I used for “The Return to Terra Nova”. This asset does not include that (poorly designed) staircase and other parts. It is just the skin and bones of the set that you can customize for a different mission.
Note: This was built on a flat ground map. On non-flat maps, you will need to set y relative to absolute zero and readjust the y coordinates of each level to bring it down from the sky.
Ziggurat PDF – contains all x, y, and z values, along with rotation degrees.