Hello! Thank you for inviting me to bid on your project! I have extensive experience in .NET/Java development and I've got 3 years of experience in Unity.
I've never done anything with the Kinect, but I can promise you I can learn how to do it. Also you're writing you've already got something kind of working, so I could take your project and try to work out what's wrong with it. I don't know how long this project is going to take, but it's probably going to take me maximum 2 days, but I'm setting the delivery date to 7 days. If this is too late for you, I'll readjust it.
For this to work out, I'll need to have you available as so that we can test it out and see if it works!
Anyway, thank you for considering me, and thank you for your invite! If you choose to accept me as your freelancer I will be available on Skype/Freelancer for the duration of the entire project, so we can communicate and discuss to make sure the product I deliver to you is exactly what you want!