Software/Script Developement Team needed -- no individuals only teams that can work fast

I need the following script/software written to be integrated into another site -- feel free to use your previous works or combine some of the free scripts that are out there that have some of these functions: The software/script must allow the following: Paid members to use their username and password to access a back end section where they can upload their music, select a price in which they want to sell it, and choose whether to sell entire CD or the songs as individual items, there must also be an option for them to turn their songs into ringtones (this may require a ringtone maker inserted but they have these around for free) and offer each song as a ringtone. They must also be able to choose the price of each ringtone. From their panel they should be able to see what items where downloaded and how much money they are due. Non paid members should have a section they can go to and purchase the ringtones, the cd, or the individual song. They should also have an option to preview each song before purchasing. The ringtones should automatically be sent to their phone after purchase (they must choose the type of phone and input the phone number). Their CD or individual songs should be emailed to that person (e-download) after they are purchased. The processor should be paypal. The system should allow paid members to designate when signing up their paypal email address. In the backend panel it should allow them to withdraw money instantly and have the money come from our account to their account minus a certain percentage that we will choose. The product should be fully functional and fully integratable into my existing site/database. You can host it on your site and constant communication -- at least once a day -- is required.