the general idea is good but you would need medical care at hand and i think it would cost a lot to set up
it really depends on a lot of things - your personality, your qualifications, your budget etc. try to get together with friends of family to get ideas that you can afford, and your like. if you dont like doing it there will be no motivation for you.
I think you better have great brainstorming first. Ideas don��t come often so what you need is just an intelligent mind to manipulate your ideas pertinently when they come.Best wishes for your venture.Sandy