Hey there!
I see you're looking for a 3d artist, and that's exactly why I joined freelancer.
Unfortunately I don't fit all your specifications, as I don't have any experience with Unity or a motion capture enabled kinect, but I do know how to model and texture in blender, and I have a rudimentary understanding of rigging and animation, and I am resourceful enough to learn what I need when I need it.
I also love Mass Effect (pre-Andromeda, of course), and would be honored and grateful to work on a project with a similar style. I also understand the necessity of trading low cost work to build relationships, and I am willing to go along with the revenue plan you have stated.
I hope you'll consider me over these overpriced, auto-bidding companies like Archvision 3D. If not, good luck with the game, and I hope to play it when it releases.
Best regards,
Tyler.