To what degree does the fuse skin on the Blackhawk transmit loads?
I assume it's an integral load bearing part of the airframe, and you couldn't simply `re-skin' a standard UH-60 with some exotic RAM material and add a few rotor hats etc.
The other thing that is very odd about the photo is the tail-rotor blades.
Even taking into account that weird coolie hat that sits on it - the blades looked shorter than a standard UH-60 tail-rotor.
The stabilator was also not a standard UH-60 one.
I'm as cynical as the next punter, but in this case, I do think there's some substance to the story.
Have a look at HaveBlue, Tacit Blue and some of the other weird predecessors to the F-117 and B-2.
Landing gear from an F-5, engines from a T-2C - FBW from F-16.
Noting that rotorcraft are in some senses an order of magnitude more complex than fixed wing aircraft, surely It's still possible to build something quite unusual in small numbers - using off the shelf components - landing gear, transmission, rotor system engines, avionics.
If it proved to be stable and reliable enough - one might even consider using it as a tactical advantage on such a mission...