Live Webcam Chat Site with Payment

We are looking to create a site similar to many online dating sites. The aim of this site is simple. A performer can log onto the site from anyplace on the internet. The aim is that they have a simple chat window and if available can also see the client should they have a camera. Only online performers can be viewed by the clients visiting the site. A client can register and add credit to their account. Then for free can see an image of all the Performers that are currently online. The clients are allowed to chat with the Performers at all times. A Client can “Go to Private Room” with a performer and this would cost a fee per minute charged in advance. At all times the client would see how many minutes they had left and could click an option to easily refill or top up credits. If a script already exists for this project then we will require it to be able to be tailored to meet our needs. A key element to this site is to keep it real simple and easy to understand. No excessive complication. The Performer should clearly see when they are in private with a Client and have a Banner or such indicating that they are now in “Private Room” and can commence private performance. Script will be hosted on a dedicated server. No recording of scripts required. We would like also to be able to have ongoing improvements and support and this will also be key in our deciding on who wins this project. Another site like what we are interested in is called [login to view URL] and this could be used to better understand the needs of the project. However we would like to greatly simplify this if possible.