just to let you know...you can get any k10 locks and you dont need the keys, as theres a key code stamped on the drivers door lock (3 or 4 digits iirc)...take it to nissan and they can cut one to match
(well at least they could when i did that for mine)
Dont think that info has any security implications...admins feel free to remove, if you think otherwise
ive got a set of complete locks in my k10 forsale section, if they are any good for you. (shamless plug lol) :laugh: (not sure how much difference there is between door and fuel flap...as mine are for ignition, door and boot)