Here is a screen capture of the print out. It has 15 sheets of paper however I only printed the first 12 pages.
Next I glued the template to some foam board I purchased from the dollar store.
Once dried I scored lines to match the triangles on the side of objects labeled 1-2.

Then I cut out the four pieces. Object 1-1 is ignored and was part of another idea I had.

I cut out the opening for the screen and carefully glued the edges of the front, base and back to the s shaped parts.