rails e-commerce website

we have a a ongoing rails e-commerce project, everything is almost done, we want you to add two two things. 1. A system with which users can add products to there cart, users can delete products from there, and there needs to be a confirm order button in the cart page which will save all the information for the admin to see. 2. Users can request a custom made product with the help of a form where they can give all the required details. The form will be also saved for the admin. this is an urgent project, we don't need any designing work, we just want you to build the functionality. We only have 3 days time.