As someone who is in the same business that you are trying to get into, let me say this:
I think you need to sharpen your communications if you want to get business. This kind of client is very reliant upon trust - that's the theme of offshore development is that it's remote and the client will feel empowered and far away so they need a trusted resource.
You first mentioned your credentials like this: "I have experience managing freelancers and running business in general so this venture would be (technically) pretty easy for me."
Then you said: "I have all the experience needed to set up a shop like that, I own 2 small business for myself. I also helped to set up over 20 businesses for other people (as a consultant, I write business plans and also help them during the whole business set up process). You make it sound like a big deal but like I said it would be pretty easy set up. The only thing is proving to somebody that I am capable of establishing offshore development center."
But already you have lost my trust and I question your credentials. The reason is that if you truly owned two business and had set up over 20 businesses for others, written them business plans, etc. you would have a much clearer and coherent idea of what you are doing.
For example, a big part of any business plan is the definition of the service/product. Another big part is the definition of the market and your intended way of reaching that market. Someone who had written many business plans would not stumble so much in defining their business, until someone else posts a list of specifics and you say 'yea that's what I will do'. Someone who had written many business plans wouldn't go to an internet forum and say that maybe they'll do the first project for free, ask how to reach those people, etc.
At the very least, you would have SOME formal idea of what you are doing and how to reach clients.
Further, when someone asks an experience business person about their credentials, they will know how to answer even if they haven't actually done the service that they want to offer. They cite the experience that they DO have with specifics, they cite educational achievements, etc.
If you want someone thousands of miles away to pay you to represent them in business, you are going to have to increase your professionalism and be much, much clearer about who you are, what your experience is, where you are, etc.