Hi there. I'd be happy to work on this with you. I've read through your mock-up, which is pretty clear as to the main functionality, but there might be a couple of tweaks here and there that could be made. I'd need to know a bit more about what your expectations are and how you plan to deploy this system first, though. If you'd like to talk about specifics or discuss any particular features or functionality you think would be good, please get in touch! :)
Thanks!