Build an Populate an ecommerce store

I require a fully functional eCommerce store for selling Marine Fish online in the UK. The designer will have to create al the artwork and logos including : Company Logo Website Template Design 10 x Promotional Banners Features of the store will have all the features similar to Magento - I don't mind using the magento platform if its easier for you but must have its own unique look - checkout will be via payal The designer will also have to upload 1000 products from an existing website (our supplier) including pictures images and descriptions of each product The designer will use a spreadsheet of 1500 catalogued fish and coral fragments, using the spreadsheet which contains the common name of the fish, the cost price and advertised price they will NEED TO SOURCE an image for each of the 1500 fish and corals according to their latin name (also on spreadsheet)and upload them as an individual product under 30 different categories and sub categories A forum will also be required I will expect the designer to correctly SEO the site and also manage and implement an ongoing google adwords and facebook advertising campaign with a budget of £100 for each one, the website should integrate with facebook to provide quick and easy access for people to find and follow us on facebook I realise this may be expensive however we have the start-up capital so are waiting to hear from you with a quotation