i drivers lock barrel for a prefacelift b5?

on my door, the chrome trim on the outside has come away somehow. i can still lock and unlock the car, but i would like to fix it.

does anyone have a spare knocking about? i dont even need a key, just the barrel so i can try and transfer the lock outer gubbins to my car..

is this even possible? otherwise its a full lock replacement job which i want to avoid where possible.