I did something similar to this, although I posted it in OneNote and shared the notebook with my family. Then they could sync to their devices so that they didn’t have to have WiFi or LTE to access it in the parks. I try to go paperless as much as possible. Works for those times that MDE may go wonky.
Yep, in my spreadsheet this is called the “Microplanner”. 
How do you add the notes with times on the maps? (Also, what maps are you using?) That looks like it could be quite useful.
I stole the maps from somewhere online. I can’t remember where, but the ones on Undercover Tourist seem the same, though they are labelled. Here’s the MK one: Step-by-Step Disney World Park Plans for Your 1st Trip
I’m a Mac user and I just used Preview to mark them up.