Receiving an overseas shipment from KEH is usually without problems. KEH will put a customs declaration on the package that will indicate that the contents are "used photographic equipment" and the value of the equipment (KEH selling price).
Any customs duties and sales taxes will be determined by YOUR country's customs agency. You can contact that agency to find out the tariff for the equipment shipped. Sometimes the country of origin (country where manufactured) may affect the customs duties if your country has trade barriers in place.
In addition, the carrier (shipping company) will add charges for taking care of customs clearance and delivery. Contact the carrier for information. ALL charges, taxes and duties will be collected by the carrier when delivery is made.