Currently Being ModeratedOct 18, 2012 8:09 AM (in response to Gump)
I would create a Supervised backup of one "master" iPad and restore that Supervised backup to all 30 iPads in your cart. The Supervised backup will contain the data that should prevent the initial setup screen to come up on all iPads the next time you sync them. After Supervising all 30 iPads, I would then install the configuration profile(s). You shouldn't see the initial setup screen anymore.
Hope this solves your question!