Ask HN: Validating my subscription idea

I need help validating an idea. I know many of you want to build a web-based subscription website and I want to put together a series of screencasts to go from zero to a live website with backend and subscription plans and all. You will receive access to all the videos and the final source code. Would you pay for something like this and if so, how much? PS: i don't know if HN is the right place to ask this question, but if not, can you suggest another forum/group.