build an e-commerce site

> I need to build an e-commerce site. > > See > home: > <[login to view URL]> > > Empresa: > <[login to view URL]> > > Minha Conta: > <[login to view URL]> > > Interna Produto: > <[login to view URL]> > > ?ndice de Produtos: > <[login to view URL]> > > Carrinho: > <[login to view URL]> > > Cadastro: > <[login to view URL]> > for an example. > > the pages is ready in CSS / HTML. > > you can use a platform with Magento, but the language has to be the Portuguese (Brazil) > > I need an SEO optimized website that features an extensive back end database, CRM, shopping cart, secure transactions, user account access, and a simple way for a non-technical administrator to add new products, photos, etc. > > > > This site should be very simple to navigate. Minimal graphics. All navigation and product lookup done from the homepage. Alot of products to add though into the database