The only good thing coming out of this camera is more data for new sensor research purposes. For me even the 100k ISO footage is unusable. For (quote) "flying on a drone"? We can already shoot beautiful footage from a drone even at night and with cameras that aren't even designed for low-light scenarios. Now with the A7s II coming out with the 5-axis stabilization built-in you can slap that on a drone and shoot 4K internally at night, with 14 stops of DR without all the vibration from the flight. I really can't see any other purpose for this camera if the footage will look like it does in the demo...
It IS a full-frame 35mm sensor...
I once owned both the NTG-1 and 2. Later on I kind of regretted buying them at the time and waiting for an opportunity for something better to drop down roughly into my budget size. I currently own Sennheiser MKH-416 mics and a Sound Devices recorder and the difference in audio quality is staggering... Those NTGs with a Tascam sounded like toys in comparison. If you want "just better audio than internal camera mics" then Rode Video Mic (you can check the quality in devinsupertramp YouTube channel videos - almost all of them were shot using that mic) is the cheapest way to go. If you want professional audio then I suggest looking at or above the NTG-3 price point. Tascams will do a decent job (DR-40, DR-70 and above - not the handheld ones - these have different preamp tech - much inferior in terms of noise), I'd avoid Zooms (I have both personal and professional grudge against them), and when you have the cash and need for them - Sound Devices, Zaxcom or Nagra are the way to go.
He's just in "that phase" - when you think RED is a top of the line camera. Give him time and like most people he'll finally realise that resolution isn't everything... :D
Like McLoughlin said, the Sennheiser G3 is the only professional grade wireless audio system that still sell at an affordable price. I've been using mine for months now (don't have a single issue with it) and even tested its transmission in a vehicle moving at high speed vs an operator in a stationary position - result being that you can go as fast as you can as long as you stay within around 50m range. Also I've heard people complaining about radio interference with wireless systems in general - personally I've worked within one of the busiest cities in my country and I haven't noticed a single instance of that in my recordings.
As for the mixer I'd rather go straight for the 7 series recorders like the 702 - apart from the obvious they feature their highest quality preamps which really means something with their brand. As for the MM-1 it still rocks the original preamps from the mixers (which are still good) and personally I have yet to hear a single bad word about them. I have 2 of those ordered right now, waiting to get them.
And if you have the money to spare consider Sennheiser's MKH-416P48 instead of the NTG-3's. I have nothing against Rode - I started with their products but the 416 has been the industry standard for over 3 decades for a reason. Look up some audio comparisons, whichever sounds better in your mind should be the choice. Sennheiser also launched new products - 8060 and 8070 - 8060 is little over half the length of 416, 40% more expensive but much more forgiving on the angles and treats off-axis sounds with more "dignity" if you can call it that. 8070 is basically the cannon sized version of it.