There is nothing in the Pilot's flight manual that actually says you can't refuel with the rotors running but the way the fueling section is written it is very clear that they do not ever envisage people trying to refuel the helicopter with the rotors running.
If you were in that much of a hurry would it not be simpler to just bite the bullet and buy a helicopter that is capable of a 100 knots instead of pootling about in a 300 at nearer 60 kts.