Replacing the bathroom window

I need both a header and a tempered glass window in the bathroom.

That scaffolding on wheels is super useful since I can just roll it around to wherever I need it.  When I was first buying the tempered windows I tried to get an off-the-shelf one, and the closest dimesion was a bit shorter and wider than the old one.  That ended up not working out, but I guess when I ordered this one I had forgotten about that and still got that size.  You would think something that is commonly required by building code would be easy to get in a store like Lowe's or Home Depot, but apparently not.

This whole process went way faster than I expected, so I guess now I have an extra day to clean up my upstairs...