Build an Online Store

I need a new website. I already have a design, I just need you to build my online store. We are a food company who make weekly meal plans for our clients. The key to building this website is the ordering process. Our design vision is something similar to what they have at [login to view URL], where meal plan items can be selected by the client. When selecting, they are able to input any allergies they have and items with those allergies will be sorted out of the selection options. Once they place their order, a summary will be sent with their meals laid out in a table with days of the week as columns and meal categories as rows. On the back end, we need that information as well with a total count of their items when putting together their order. We also need a master order count of all items ordered that week (cutoff to order is Thursday at 5pm).