Pay per minute (PPM) Video Chat Script

I am looking for someone to develop a two-way video chat script for a tutoring website. There are some existing software packages out there: JamOnCam SoftService 123FlashChat FlashComs These all look fine, but some of them are really expensive. I need a script to adapt to my Drupal site that can handle the following: + Two way video chat (PPM) + Commission system to pay tutors + Credits system to charge students + Review system for tutors (feedback after tutoring session) + See usage statistics for students and tutors + Custom profile for tutors + Scheduled and instant session requests + Video chat requirements: whiteboard, file sharing, screen sharing, text chat If you have a working site (no adult sites) with these characteristics and are confident you can provide a good solution, please bid for this project. You will also need to provide a proposal for a hosting solution.