Finishing the shop bathroom - Updated and Completed

This will be a long post.  It's been a long project.  I've got five days invested and have a couple more remaining.  Also, I took a lot of photos.

I had some material left over from a previous drywall DIY project (linked).  I decided to tackle another project out in the shop using the remaining materials.  I ended up using all the leftover stuff, and had to buy a great deal more material to complete this project, so that logic was a bit flawed...