$11k upfront can easily be seen as cheap or expensive depending on what you are looking for. The Nomad Capitalist offers a large range of services along with his advice. The main advantage of using his services is his large network of personal and trusted professionals available to you via his services.
While you have not mentioned much about what your concerns are, I am assuming you are more focused on lifestyle location choices with the added bonus of legal tax reduction. Spend a week on his website and YouTube channel. There is hardly any topic or region I can think of that he has not already covered for free. Regardless of if you go with someone else or use his services, you should only invest or take actions on things you understand and can teach others (speaking generally). He already gives about 90% of such information out for free.
Anyone would be happy to take your money. Just remember that whatever advice or solution given needs to suit your personality and risk tolerance. What seems good for one person is horrible for another. The more education and experience you have with your intended location(s) and investment(s) the happier you will be.
Spend a week studying his material, write down your desires and draw up action plans to bring them to life with a time line. You will find that most of the contacts and information you need will come to you during your study. You already have a strong travel document with a number of countries offering options not available to most.
We all have different needs and different expenses. An $11k expense is a great deal if you are planning a large expense over multiple countries/continents requiring many different professionals speaking different languages while providing you with location lifestyle choices along with passive investments removing you from the day to day running. But if you are more hands on, or are not planning to spend or invest much, $11k is much.
I would be interested to know how you get on and wish you all the best as you plan and execute your desires.