CLEAR Retail Shopping Cart (Query based)

I've got a retailer CLEAR wimax site and I'm looking to have the entire sales order entry process "streamlined" and in a shopping cart format for the customer. All customer data needs to be saved in a local mysql database and then sent into an order entry sale API to process an order fully. This is going to require essential database skills and web application skills and needs to be done with 30 days time. I would prefer someone with experience in this type of project as well as experience in the graphical editing environment as the shopping cart for the customer needs to look very professional. Please feel free to send me a comment if you have any questions.