Do you actually have the basic code knowledge to develop this site? Can I assume that with honesty you actually bought the exchange (clone) script from the Turks and will carry out continuous development in the same way?
No matter how good you are assuring me that you have ensured that the script is secure, up to this point you have made it clear that you (or your team) do not have the competence to set up an exchange according to global security standards.