Go to the shipping forum on Fauna. There is some great info. But here is the quick and dirty:
You can ony ship FedEx as far as I know
You have to be a certified shipper with FedEx
Sturdy insulated box with heat or cool packs depending on the weather
Shipping otherwise is illegal
If he is not a certified shipper, forget the deal unless you want to wait for him to get certified. It took me about a month after getting shipping boxes approved through their package testing center. There are no shortage of boas, buy locally or find a certified shipper. Don't cut corners or it could be trouble for both of you.