You have chosen to sponsor your bid up to a maximum amount of .
Custom shopping cart for customers.
1. Add items to cart
2. Do checkout (in the website. Not actual paypal checkout)
3. collect customer information (login / signup + biling address)
4. save order to the database and collect new order_id. (Order History)
5. send the order_id as part of the 'paypal express checkout request'
6. User will be redirected to your website from paypal. Update the order status in your database using the order_id returned from paypal.
7. optional payment method (Google Check out and Sage)