Couple of things jump out:
Most trustee acts will limit your investment choices into diversified investments of "prudent choices", 10% target returns are out of the question. Secondly, you will not find a respectable trust company that will remain in some form into the future to manage a perpetual trust charging less than 1%. You have to pay if you want to play (this is a tax deductible management fee in Canada, not sure about the U.S) For Charitable purpose trusts all income is required to be paid out each year, you can't set a limit, at least in Canada, in order to maintain its tax status.
Big banks will offer a foundation setup that would be most cost, and tax-effective through their trust companies. I would imagine other banks around the world would too, but you'd need to ensure you have more than $1 million in investable assets at present before they would entertain you. There also comes a time where one has to realize that one can not rule from the grave forever and limiting investment choices and companies are generally not recommended as you/the trust would spend a fortune in legal fees in the future varying trust agreements in court.
