Beat / Music selling for joomla - Profile & Homepage

i need someone with good website development skills to add new feature to our existing website. This is a similar feature to [login to view URL] almost a copy of this site but of course designed in your style and style other people would understand. this main component will be used on community profile (TAB) and beats / tracks will be uploaded on their profile. all tracks will have an automatic voice over watermark protection. when beats are sold protections are removed and downloads are delivered with email. same email used for paypal. And download links are also delivered on website after redirected from paypal payment. Its pretty simple process for any good understanding website designer. few Mods for homepage such as top sold tracks, recently sold tracks, latest tracks and so on,... please read my full document with depth specification on this project. I am able to pay $145.00 maximum for this project. i want this to be as similar as [login to view URL] (also a joomla website) i will chose the winner based on their work they have done so pm me with your our work related to this area. Project needs to be started soon as possible up to 20 days of working time can be spend on this project.