They changed the rules here a few years back and we are not allowed to use SWIM anymore. It doesn't bother me personally though as I read it so much on the other forum.
Caapi is really easy to grow here if you want to save yourself the hassle of importing it. You can still legally buy it from some cool nurseries.
The penalties for possession of Harmine and Harmaline where recently changed so that the possession of minute quantities are now treated very harshly. I'd be really careful about importing any substance that contained Harmine or Harmaline.
Amanita Muscaria are also very plentiful here. No idea about the importation of this one though. Go with the general rule of thumb, if it is fun then it is usually illegal