I don't understand what you are asking.
You want to mount a Zenmuse to a Phantom 2 without the Zenmuse? Yes, you can fit the Zenmuse that you can purchase on it's own to a Phantom 2. I have done this.
I would think it's bound to work since the DJI gimbal is a Zenmuse gimbal. The Zenmuse gimbal is what Phantom 2 or shipping with. I'm positive because I just purchased a Phantom 2.