HELP!!! single key lost!!!!!!

Hello! I have a Ford Escort Kombi BJ 96 with WFS! Unfortunately I have lost the only key. Yesterday I inquired at Ford and they want 500€ to expand all locks and make new locks and program them! It seems to me a little too expensive! If I find a complete key set with the car butcher with bowl, do not need to have the key programmed in then, don’t? What do I need for the lock atz, also a stew Gets???? Please for help!!!! Thank you very much!