Hello!!! You must see the VFR charts of the area and the air routes, arrival and departure to do not disturb the air traffic!!!
For me you must do flight Plan before flight 15 -30 days to the location CAA, to take the OK!!!
Beware the weather...
That’s a large job, I imagine not many here can do it. I’d break it up into a mosaic of smaller sections for processing and joining them after they are completed. I did a large mapping project and posted it here by doing this. Another option...