I've been following this guy's work for some time now, he's using an MK (you can see the red FlightCtrl V1.3 in the video, also stated in a number of interviews) that's (according to him) been modified to suit his needs better.
I personally believe that he's just flying a more-or-less stock MK with stock FPV gear and a custom camera mount, but cleverly making it sound like rocket science, which on one hand is good and smart for his business, but on the other makes it sound a little like "I did this all by myself" :-)
It's fairly trivial to spend lots of money for mikrokopter & rangevideo parts & make a business. The investment is tax deductable & he can get massive economic stimulus grants as a small business. Doing it for a hobby is what kills people.