Buy broken LCD screens

I am looking for someone/Company to build a traditional e-commerce website for the wireless cell phone market. In traditional websites, a customer would log in and start purchasing on the website, like an Amazon and pay for their items. However, this website is of the opposite. My website will be a site where cell phone retailers or cell store owners will be able to sell broken cell phone LCD screens. For example, when you log in to the site. I'll have a tab for Apple and Samsung. When you click on Apple, there will be price of how much I will pay for a broken iphone 4, 4S, 5, 5S, 5C, ipod screen. If i click on Samsung, there will be prices on how much i'll pay for broken LCD screens for S2, S3, S4, Note 1, Note 2, Note 3, etc. Let' s say i have 10 iphone 4S screens. I would type in '10' and then click update and the site will update my cart to '10' iphone 4S screens with a subtotal. Obviously, if you do update the cart you need to log in. However, you should still be able to see the prices without logging in. After you've updated your cart, there should be a screen that asks you to confirm your shipping address and subtotal amount as well as section indicating how you would like to get paid. Either paypal or check. You just click on your payment method. From there the final step is a screen for the printing out the mailing label. Our Company will provide free shipping thru FEDEX. The customer enters his or her shipping address, the weight, the dimensions and print out label to send. FEDEX actually has their own coding that they provide for me. The best example of a site like this is: [login to view URL]