Need urgent help I’ve lost all the keys

I lost my last key from my Lancia kappa 3,0 i, it was the only one. I didn’t have a code card and can now, according to Fiat/Lancia, except door lock, ignition lock, both ECUs don’t exchange anything!? Who has advice for me? I could, if I get the car open, expand the door lock, write the number that is written on it, get me such a key to the car. So Fiat/Lancia. Can, however, since no code card is available and it is not a master key w Fiat would like to have about 2000 Euro. Can someone decode the ECU if I would get the key or one who has a different idea. The EZ: 01.06.1999. It is already an unding that something like that is produced at all. It is a C1 lock.