Remember to open a separate VISA card for all your extra purchases; spare props, prop guards, prop balancer, gimbal guard, gimbal clamp, ND filter to protect the camera lens, variable ND filter for those really sunny days, extra batteries, Litchi app for autonomous missions, metal case, back-pack, tablet, even brighter tablet, even faster and brighter tablet, even faster, bigger, brighter tablet, bracket to mount the giant tablet, sun-shade, wide rim hat to help shade your screen, black shirt to reduce screen glare, anti-glare film for your tablet, range extender, extra remote in case you break the first remote installing the range extender, editing software, LUTs to color grade your video, on-line courses from Phantom Film School, bright yellow and blue landing pad.
Find a friend who will accept deliveries or have everything shipped to your work place. You will also want a large garage with hiding places for all of this stuff.
Enjoy!