Hi,i have a link here which offers advice on bringing your baby home,ideally i would say leave your baby out,walk around your home talking to her/him & let him he become familiar with the new surroundings,you can still follow the advice but you will have to judge how tired you baby is after such a long trip,perhaps in your case,some cuddles & reassurance then some rest in his cage.Good luck..
http://www.greyforums.net/forums/the-nursery/72855-bringing-home-your-baby-grey.html