I’ve been waiting until this model was more complete / accurate, but I’ve realized that I will never be satisfied and it will always be evolving.  So here it is in all its glory.  Feel free to download the file which can be read with Sketchup.  Learning Sketchup is easy.  There are some great video how-tos on Youtube.  Feel free to post comments if you need some advice or have any.  If you’re already good with Sketchup, feel free to modify this.  I’d be happy to post cool ideas.