Not sure if it would meet your speed and runway requirements, but as far as 9 passengers comfortably, the Embraer Legacy might be worth a look. I agree it's nowhere near the plane the Challenger 300 or Falcon 2000 is, but if you aren't trying to stretch out the legs, the speed difference isn't so bad, and the passenger room is nothing short of spectacular. Don't have any time in them, but my current employer used to operate one and he loved it. It seems to get overlooked because it isn't a "ground up" corporate airplane. I think that might have helped in keeping purchase prices on the lower side though. For 15 million there are some fantastic airplanes out there. Good luck.