You generally want to make it a business. The licenses are fairly cheap. It'll protect you from a lot of legal shit.
Also, side note: Why do you think you can run such an operation and other people can't? By your admission, the barrier to entry is a hundred bucks, so anyone can do exactly what you want to do. How will you compete with them? Do you think you'll be able to price it lower than them (which is my assumption of your game plan)? Why?