Commerce site - DotNetNuke....Maybe osCommerce

I'm looking for somebody to quickly build an eCommerce website for our t-shirt company. I need it to be designed in such a way where maintenance and changing the catalog is not difficult to do. Therefore I need it done in DNN 4.x. I'd think about getting it done in osCommerce if the price was right but I highly doubt I'd go that route. I need to be able to add categories such as "Clothing>T-Shirts>Mens>Womens", and "Jewelry>Gold>Charms." The cart needs to be able to handle multiple adjustments to a base item. For example, a customer wants to purchase a certain style shirt needs to pick what size and/or color also. I have a logo I'd like to use as a banner. Again the most important aspect I need accomplished for this project is to make it easy to maintenance, add to and change things. I need this in 5 days. However anybody with DNN experience should be able to get what I need done in 1. I simply need a decent looking eCommerce site I can place my product on easily. I will provide the hosting on GoDaddy, therefore I need the dnn installation to be in a child folder of the root. GoDaddy doesnt allow medium security of the root folder.