camshaft sensor.

Hi i have CHEVY AVEO 1.2 LS (T300) and have been told this is a sonic.
the camshaft sensor is faulty and im finding it difficult to get an original one as all the dealers have left the UK. The number on the old sensor is 2791 020091
55566932
Engine management light on with code P0017/POO16 CRANKSHAFT CAMSHAFT. Changed crank but need 2 camshaft sensors.intake/exhaust.

Any help would appreciated...