Build a Product showcase like an Online Store

I need a website like this [login to view URL] but with different look n feel. You have no need to add whole data of this website but for testing only.... Following are some Guidelines: 1. Categories: Admin can add categories using a form (Category Name. Description, Tags, Image, etc). 2. Sub Categories: Admin can add sub categories in a Main Category using a form (Main Categories in a drop down and Sub Category Name. Description, Tags, Image, etc). 3. Products: Admin can add Products using a form. (Main Categories and Sub Categories in a drop down, Product Name, Description, Size, Images, etc) 4. All Catgories will show as side menu bar and sub categories shows like sub menus. When User Select a Main categories or sub category, All products will be shown 5. Search: User can Search products using any key Words. 6. Admin Panel will be Password Protected. 7. Website must be responsive 8. User can Modify or delete any category, sub category or Products.