Build a website with eCommerce capability

The website is to allow for: 1. Listing products similar to these sites: [login to view URL] [login to view URL] 2. Adding, editing and deleting new product 3. Customers can sign up online into their account 4. Customers can order online once logged into their account 5. Admin can generate sales report per customer, product item 6. Admin or customer can generate and print invoices and generate his specific reports 7. Each item price can be specific to each customer, so once a customer signed up, he inherits the default price but admin can override the default price for each customer. This requires a template of prices per customer and the customer invoice is to use the template.