There has been some interest in me just making the theater file available to my students as is. This is helpful for those that do not have 3ds Max to adjust the model. I am making three different file types available here. First, the .fbx ready to be imported. You will have to import the materials seperately, but I am also making those available. The third file I am included is a UE4 project with a "theater" level already created. It is basically a basic empty VR level with the .fbx all imported, materials included. You will have to set up some functionality in it still, like a nav mesh, collisions, etc., but if you want to start from there, go ahead and download it.
*For the UE4 project, you will want to unzip it and open the project root in UE4. Then go to open> level and navigate to the level "theater".