development of a kinect game

I am looking for developers to work on a “kick-starter” Kinect game. In principle I would like to know what kind of budget and time frame it takes for the development of a Xbox Kinect game from beginning to end. For example, how much did it cost, and how long did it take for Kinect sports to make??? If anyone has experience in that sort of game development, I would love to discuss possiblities to team up.