cartfly clone ecommerce shopping cart

I need a cartfly clone with a few additions. The additions are for the store creator/seller: 1. Integrated with paypal 2. Inventory Management functionality 3. Search engine on main page which searches all stores created using cartfly clone site 4. Ability to add coupon codes 5. Invite capability through yahoo mail, gmail, hotmail, etc 6. Two types of accounts- buyer and seller 7. Ability for sellers to create profit, sales, etc reports 8. Integrate with [login to view URL] to be able to post to multiple social networks. 9. RSS feeds for new products, news, etc 10. Social network functions like connections, calendar, blog, PM, polls, photos, videos, etc. which can be customized/hidden via drag and drop panels like in [login to view URL] 11. CSS customization like in [login to view URL] 12. newsletter capability 13. Feedback/Rating System like eBay 14. Make an offer feature, like eBay Optional: 1. Integrated with USPS, UPS, DHL, and Fedex for shipping. Back-end: 1. Easy editing/customization/management like Joomla