I have complete faith in what you will be sending Wolfgang.
All that are participating in this venture, understand that they can go for very long periods of time packaged up and in the dark. Would six months in a dark garage with no dirt, roots exposed and piled high on top of each other qualify as a test? Ask dirt.
I always plant the ones that have had a long distance travel into small containers. That way I can control moisture and sun, moving them as needed. In the fall when the rains have returned I usually put them into the raised beds.
The only ones I have ever had problems with are the ones that had all roots cut off.