Not sure on stripping down the Phantom - although I have read of people using the innards on other models as I believe it's simply a Naza inside the Phantom.
I've ordered the Hobbyking 650 Predator as I love the look and features - it's on Backorder though - so Hobbyking may be holding onto my money for some time before I see it
Figured they will be popular - so better to place an order now and get in the queue as it were !