Oh wow, that's so complicated. Maybe they made the rules stricter, but I wasn't that specific in submitting the exact location for the Fortress in 2021. See my map I sent them, and they allowed me to fly without any problems in the city around.
First of all, just follow the instructions on their official website — I did that for every location I flew at in Greece. The process was very easy and straightforward, and they replied really quickly, so no worries there.
From what I remember...
It all fits fine vertically as well, I just decided to run it diagonally, since the divider strips can be configured however you want them.
The zipper pouch easily fits the charger, cables, and extra propellers.