A 4 Phase, $55 billion plan to use some of the world's empty islands as a buffer country.  while not cheap the money is from investments, loans, self financing and other sources.

The updated original document is in the link below.    A Phase 0  working document is being developed to further define and refine what is in the attached document.   It is currently over 105 pages long and  is backed with over 20 gigabytes of data.