Package Shipping Store Website

Our client is an independent small business that arranges the shipping of small packages like a UPS store or FedEx store. They wish to create a website that allows their customers to prepare packages for shipment through FedEx, UPS, and or USPS, pay for the service, print the shipping labels so they can walk into our clients store and drop off the packages.
Deftship.com provides the exact same service and they want to duplicate that functionality is a simple inexpensive website.