Custom Tshirt website

I need a site designed based on the design of [login to view URL] (much more simple tho) I own a custom jersey/tshirt company. the customer needs to be able to design a t-shirt, all prices put together, then customer be able to check out. I'm not sure the coding that is needed, but I'm guessing it could be based off of oscommerce/cubecart I have used both of those and i'm familar with the back end so it'd be easier for me. Please let me know if this is possible. also like the site to be HTML5 or NO FLASH... I use an ipad and would like it to be viewable on there