Building an online store

We are in need of website for a new delivery business. The website needs to be capable on holding at least 5000 items amongst different [login to view URL] will be several pages of categories on the website. We need to be able to have the customer write a comment under each item they purchase. Also the customer needs to be able to pick substitutions for each item , if the item they choose is not instock when we go to pull the item. Once a customer checks out a confirmation email needs to be sent regarding delivery time and a picture of the delivery driver themselves. We would also like the customer to be able to track there orders from "in line, filling, out for delivery" Customer should be able to see their total on any page. Some items are sold by weight. Site needs to have a cutomer login so they can save all of their recent activity and payment method. We needs a program that stores our customer base and our customers last purchase with us. We need the home page of the website to have a area for a customer to enter their zip code and see if they are eligible to receive delivery from us. We would need a section on the home page where we can enter in daily specials. When customer checks out there needs to be a place for them to select a delivery time according to availability that will be updated by our staff. Each item on out website needs to be clickable to retrieve item details. We will need a program setup to act as a dispatch page also; as to where our drivers can login from a mobile device and receive the orders in the order they came in at. That program needs to be able to Let us print receipts , adjust receipts, see all orders completed and not filled. We need to be able to update the orders as we fill them to remove them from the list of orders to fill. (program that comes to mind might be "Ontime360") Our drivers do not need to see the financial aspect of the business.