Seller website

CMS based website (prefferably joomla) for seller of items. The example website is [login to view URL] Here are some of the requirements: -Accept credit cards, paypal -Calculate shipping or have the option in the backend of the seller entering himself the different shipping prices for Quebec, Canada, USA and World. Ideally we would use Canada Post to ship. -The customer must be able to redeem a coupon when buying an item so that he could get the item for free (ex: the customer bought a Groupon special and got a groupon code he can enter in the website to get the item he already paid for with groupon. -In the backend we must be able to create many categories and subcategories and add items to them When the customer redeems a coupon code, he gets the item for free and depending on the item, can have free shipping or must pay for shipping. The seller decided depending on the item -Choice of different colors and sizes for every item. The seller must be able to enter these in the backend when entering a new item -The website must be French and English