Build P2P mechanism with WebRTC and node.js

Looking for a WebRTC, Javacript and nodejs guru who can build a basic P2P system that will work similar to [login to view URL] 1) User will click a link and begin playing a video in his browser. The video will be streamed from the server with node stream and play in [login to view URL] player 2) Another user on another browser window will also try to play the same video. If the first user is still streaming the video, the server should detect this and the video for the second user will be streamed to him from the first browser through WebRTC instead of from the server in P2P fashion. If the first video stops playing, then the server will detect this and the video should resume streaming from the server. 3) To do this, we need a node server to act as a signaling server to connect the two peers according to WebRTC protocols. This should work in Chrome, Firefox and Opera, which support WebRTC. Please check for open source code on github, etc that can be adapted as many people are working on similar projects. Please don't bid if you don't have an expert knowledge of these technologies.