How many years away are we from a cheap drone that will takeoff, land, solar recharge, repeat until it returns to you a few weeks later with a few tb of SD cards of high res imagery?
A lot of the barriers are regulatory in the Western world. In rainforests you might not have to worry about that, but there aren't many shade free spots to land
Autel dragonfish and hanger and you're halfway there. Will need a fat checkbook (the bird is ~$200k) and be outside of the US.