Problem with blender website tutorial sci-fi vehicle

I cant find the modeling sheets or where to download them. On the main modeling a sci-fi vehicle tutorial page at the bottom it says, “The source files for this series contain the original concept art and modeling sheets” however when I download, “Project source files” all that’s included in the .zip is the introduction video.
Does anyone know where I can find these modeling sheets?

Also 7. 2-3 Blocking in the Wings download hd videos files link is broken.