It's the buyer, not you, who is responsible for getting the seeds here legally. If they (or a friend) have a USDA permit, they can email it to you, along with a COLOR copy of the USDA shipping label that they get with their permit. You enclose a copy of the permit with the seeds, along with a note stating the botanical name, who collected it and from what country, slap the label on, and away it goes. It is very easy, and depending on which port it goes through, it doesn't slow the process down too much. I get seeds from Africa all the time that way. I also mail myself seeds all the time when I travel. An addicting hobby.
Cheers,
Carolyn