Ebay makes it very clear that it is the buyer who is responsible for obtaining any permits, or paying any fees when they have items shipped from other countries. It isn't the responsibility of the seller, at all. I have done this several times, mostly for LEDs and similar stuff, but I no longer consider it worth the risk. Through Amazon you can usually find an American distributor for those items, so you no longer need to worry about it, and the cost isn't much different.
The only plants I have ordered from Asia arrived as a nice green smear, after 3+ weeks. But, I am a fast learner.