How on earth did you end up with 715kg per motor, and even worse. The voltage??? Like that would kill you. At most, we run 12S, which is around 50V. Now over 2 million volts? That’s wayyyyy toooo high for anything. Drone related or not
Do you have any other goals except for the 25min flight time at hover? Because the setup that you have rn would be way overkill, completely wrongly calculated, and a waste of money imo