I have VERY limited programming knowledge. Is it possible (with professional help) to create my own Content Management System (not sure if this is the right term)? I am an entrepreneur who would like to launch an online computer application where users can create their own websites without any programming knowledge.

Like something very similar to Weebly, just with less tools and a much smaller user niche.

If this is possible, around how much time and money would it take to develop a very basic version of the application I described?

Thank you very much for your help and advice!