If you buy off Aquabid make sure to read reviews of the person, some are really bad. Also make sure other people have been satisfied with their purchase, some reviews can be people that were paid, so a more personal review like on this forum is a good place.
Also, check if you have any local aquarium clubs, they trade plants a lot as well as sell them. Also you meet more people.
Sakura got plants had too much from free plants given too her and I was lucky and received the extras. They survived one week of shipping, a small break, then shipped again and they were still in healthy condition. I will ask her where she got them.