Congrats on the great project. It should be a lot of fun and a good learning experience.
I'd add two items - even if rental is requirted. Take an extra camera body. I've had camera bodies fail on two trips - and it's never a good thing. Rent or borrow an alternate body "just in case".
Also be sure to shoot RAW and backup your files. I carry an external hard drive in addition to my laptop. I never reformat memory cards until I have verified my download and a good backup. You just can't afford to take chances.
You'll have to jump into some form of rating and prioritizing images right away. It's the only way to get through large numbers of images. Some sort of rating system will be important to identify the images you want to edit and feature.
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