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cheapest for profit foundation for business activity?

What business activity?
 
Not enough information here for anyone to answer this! Please elaborate what it is you want to do and what business you are into.
 
Online activity only. Consultation about crypto currencies. No bank accounts required. No reputation required either.

I like the added protection by not being an owner. Not CFC laws yet where I live now but they might come or I might move. By not being an owner I am still one step ahead.

An offshore location that is difficult to sue is another added advantage but I think that comes almost for free anyway since zero tax jurisdictions that provide cheap incorporation services are usually as well impractical to sue at the same time.
 
You want to check the Mentor Group for specific information on how to steup your business. It's explain well there and can't be discussed in the public forums.