Avatar 2 isn't "hitting theaters" until 2022, but business is a-boomin' on James Cameron's set, and we've gotten no shortage of behind the scenes sneak peeks in the past few weeks. We've seen underwater shenanigans. We've seen extraordinarily long crane cameras. We've seen...this crazy looking crab suit thing. Today, producer Jon Laundau shared a few gifts for all you production design enthusiasts out there. First, a bird's eye view of the New Zealand set's High Camp Bio Lab build. The second photo sees Cameron himself inside the set, assumedly thinkin' …