Trade Importers Russia - Services and Consultancy Importers

I am interested in assistance in the delivery of goods from Turkey I am looking for a company that will check a trading company in Turkey, check the goods, etc will bring me a turnkey product, with payment upon arrival of the cargo

Could you please advise the price for customs brokers' services to issue one EX (export declaration) in Turkey.

1. We have company-consignee in Turkey who already paid for the goods 2. As I know in Turkey the same as in Russia - consignee pays VAT & TAX to government. I need just to check how many they need to pay. 3. So we need just to calculate them this amount & amount for import declaration