If you really want to go somewhere that will allow juice, South Africa is a place to consider, not to mention the place has all kinds of great opportunities as far as occupations go. If aren't bulshittin about leavin you shouldn't consider whether or not the place is juice friendly, the shit is illegal here but you still do it. That should not be your main concern.
On another note South Africa has some of the best surf in the world in Jeffreys Bay, so if you are into getting a huge rush from something other than drugs it would be a great choice. Also Costa Rica has some really good surf too, so either way you can get a great ride.
Good luck in your adventure, and I hope everything works out so you are happy.