I am willing to do this. But this is a new project for me and would take some time (say 4-5 days) to figure out all the steps to get this done. So, in the beginning you have to be patient. Also, you will have to start paying me in small amounts from the beginning so that I know my efforts are not in vain. I am adding few milestones to make this payment strategy clear enough. My current estimate is that in 3 weeks or so we should have a working prototype. After that full implementation, testing and accuracy improvements would take rest of the time. At any stage if you feel that the project is not going exactly as you needed, we will stop, so that we don't waste time and money further. I would also be ready to provide tech-support for a month after the project is over to make sure you get what you needed. If you think this is good enough proposal for you then send me a message to clarify any further doubts you may have before accepting the proposal.