1. Do you mean the star field or the other lighting?
2. Here is a pic from the front looking towards the back. The projector is hidden in the back soffit. If you look in this picture you can see the hole it shoots through.
![IMG_2840.JPG](https://lh5.googleusercontent.com/-7svsk-NnsGo/VTaLo9z2dCI/AAAAAAAAX8Q/2-nRzUSfPpY/w1245-h830-no/IMG_2840.JPG)
3. The sky is the limit as far as cost. I paid roughly $200 for the material to create my screen. My first screen was just a 4x8 sheet of mdf that I painted and it was great.