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...
I’d use a fixed wing drone. Their range and time aloft is at least double that of many DJI drones. Check Team BlackSheep - Serious Toys for ideas and some models…
I agree with Felix, your laptop will essentially be a gaming-type computer with a dedicated GPU. If you are running either the free or subscription version of DaVinci Resolve, a very good professional-level video editor, the laptop needs a...
With a proper PC: Look for an intel core i7: a dedicated GPU (8gb) and at least 16-32gb of RAM.
Not all editing software shunts the processing to the GPU - some video editors still put most of the pressure on the main processor.
If you prefer a...