I have this client that wants a single-product website. The product is a training-video that they want to deliver virtually and optionally physically. I usually do all the front-end design and back-end development but the budget is close to $0 to start with. So I'm looking for a platform like shopify or something where a shop/cart can be set up quickly and simply with minimal up-front cost - but which can accomodate some kind of paywall (DRM too?) for the online video with an option to purchase for an aditional cost the physical DVD. Am I approaching the wrong way all together? Or do you know of any platform that will accomodate the specs?