OK, Boomer will be flying Continental, but ALL arrangements are made THROUGH the Nippon Express Office. Boomer will be traveling out on the 14th. I have a form being e-mailed to me shortly with more information. The final cost will be ~75,000Yen which is right around US$700. I'll have to bring him in to the airport early on the day of to get an extra health certificate from the quarantine health inspectors at Narita but that cost is included in the cost of his shipping as long as they don't find anything wrong. He is NOT allowed to be sedated, so hopefully he will be able to relax a little bit on his own.
I'll update as everything else falls into place.