Build ecommerce website like microjobengine diplomat

My website functional requirements are. Front End 1. Similar or somehow different look like fiverr, on homepage latest services,top bar header contains search, categorized latest services etc 2. Login / register option, ( you give me register fields that you want in it. and for user biodata ) ( user management system ) 3. When user register, you can approve a user, or user can activate account by visiting e'mail ( if you like this option ) 4. After login, user can sell/buy their products/services. 5. Add service form contain title, category, subcategory, tags, description and image.( process of adding service may differ from fiverr process ) 6. I can edit service through account, delete etc. 7. When a visitor see his service,and he messaged him, ( Whole messaging system module ) 8. on his service, a button called Order, when he click, seller gets the notification and countdown 9. after work done, he deliver to the client. 10. if buyer marks complete, he gets payment Backend 1. admin can manage users, edit delete, active 2. admin can manage all orders 3. admin can manage categories, add , edit delete 4. site settings 5. manage all services 6. $5 for single service and multiple of $5 like 10, 15, 25 50, 100. No 7, 9 6, 4 7. 10% commission on upto 5$ single service like wise higher. 8. Paypal, credit card, payoneer (mastercard) system other settings if any. Please send me details including cost. Thanks