This is interesting to read - dream crypto utopia (with its own airport). Is it possible, yes it is. With the amount of money that they are holding? I bet they can move mountains with it.

To evade tax? For now yes - but it could change, i just dont know how will they secure that by the time the project has progress or completed. They are still expats so i dont think they hold any grounds to stand against taxes in the coming future claims.
Whatever implications it might face in the future ~ i still want to see it being accomplished, this is gonna be the first! Looking forward to it.