Hi David, reading your cruise, done Asia many many times and always used same travel company and wish she did the whole world. I have done many tours, most in Nam, but others in thailand, Cambodia and Malaysia with ngoan.le@travelauthenticasia.com. She can help you with all paper work and you do pay up front, tell her you chatted with me on line. I promise you will be happy if you deal with Ngoan who is the owner. Rita K.