It gets pricey for sure. I had to use ALberto from Aquatechnics to help me clear and re-ship the fishes to me because I simply couldn't drive to Miami just for the fishes.
American Airlines charged me $172 in freight and Customs charged $60. The rest of the charges were for shipping from Miami to orlando and paying for Alberto's services. So I would say look to pay an extra $200 for 4-6 fishes and the other misc charges from the transshipper.
It cost me a bundle but I am very, very, very happy.
Ivan