Beehive Canvas - Website needed

We are a canvas printing company based out of Salt Lake City, Utah and are in need of a website that can showcase our work. Some KEY features that we are looking for: Allow for users to upload images (directly from computer, or from a linked instagram/facebook account) Options for sizing that can be selected with a real time price reflected along with the ability for users to add custom sizes and to add multiple panels/frames. Ideally, we'd like to be able to make sure that the image which our user has uploaded is going to be large enough for the size requested. We would like for the user to have the ability to add multiple prints to their cart, finalization would conclude payment processing which would allow for shipping options and promo codes. For reference please view: [login to view URL] The website should flow smoothly and look clean, mobile web compatibility would be a plus.