simple clone of cafepress dotcom

We are looking to have a simplified clone of [login to view URL] built. Our company is a custom apparel printer (t-shirts) and wish to implement a program similar to what [login to view URL] has available. My company based in Maryland, USA is a custom screen printer and engraver. Please have a look at their website to see what I am talking about. Our product offering will be limitedpossibly a dozen or so custom engravable gifts. The admin section needs to allow for us to add and remove and edit products easily. When a new user signs up a folder will be created with his site name. Please post any question you may have. If you bid, please post how you plan to accomplish this task.