First, welcome to BYC! and second, relax and just enjoy the trip! One poster mentioned a while back that if you worry about every disease you will be seeing it in your sleep! Have fun!
Welcome from New Hampshire. Good luck on your newest family members. They will give you hours of entertainment, not to mention some tasty eggs.
I started out with 5 Barred Rock, and was so very nervous about raising something new, but this forum is so informative and has been very helpful. I am ready to bring more babies home this spring and increase my flock. Have fun.