Unless you have access to a market where you can promote the use of the service.... you are going to have a hard time being profitable or gaining a foot hold.
I am not kicking you in the nuts on your idea. I think there are many ways to monitze it. However, I think you are going to have to spend a lot of money to crack the market if you do not have a segment you deal with or target.
Brief example to exemplify the point:
On my
modeling site project... if I did not have access to a TON of models, this would be a fool's errand.
Fortunately for me, I have so many people in my college town looking for work. It actually makes sense for me to build something for model management for myself and company, but finding a creative way to (long term) monetize the profiles, and database.
The point being, I already have a target audience and market. So the idea will be a success in the short term as it solves my immediate issue. But long term will grow and I will be able to monetize the overflow.
Same thing with doing the hosting to pair with my consulting, and helping new girls and start ups. I already have people who are looking for these services and pay for my consulting who, right now, I have to refer to other hosts, registrars, and operations. With my own, I can actually keep everything in-house and maximize revenue for me.
Again, I already have a marketplace developed. So I am just plugging in a better solution for the short and longer term where I can keep the money for myself, versus always having to refer these people to this registrar for that, and this hosting company for something else, and what not.
Hopefully that paints a better picture for you. Anyway, good luck hoss.