You need to have a chat with a quarantine centre such as E Z 2 Spot or Oasis. They will give you the current prices as they are subject to change very quickly depending on fuel cost. We have imported several to the UK over the last few years. I am currently arranging for an ASPC pony to come here next Autumn and the quote for that at present is $3000 for quarantine & flight, $450 for collection from breeder. Costs on arriving in the UK depend on the original purchase price of the animal ours will be around £500 for VAT, airport taxes and vets fees on arrival. I hope that helps. If your client would like to know more I am quite happy to help answer any questions.