You may want to check this thread How to setup a International Trust in Seychelles as far as I have read and found out a Trust in the Seychelles costs between 3000 and 5000$ depending on what and where you get it done!
It seems that there are a lot of ways to protect your assets. One of the recent addition to my knowledge is a Holding company, and now this overseas trust that you are talking about. I'm amazed how advanced people are these days in terms of protecting their assets.
You may want to check this thread How to setup a International Trust in Seychelles as far as I have read and found out a Trust in the Seychelles costs between 3000 and 5000$ depending on what and where you get it done!