I've done #2 a bit while in Japan, but stopped because I didn't have enough scale. You have to first communicate about what they want, find where it is sold, ta

I've done #2 a bit while in Japan, but stopped because I didn't have enough scale. You have to first communicate about what they want, find where it is sold, take a trip there, box it, stand in line in post office, fill customs forms, do bookkeeping, answer to "where's my package omg wtf!?" e-mails and so on. For customers it was sometimes inconvenient because the packages would be stopped by customs in their home countries.