Brumby/EJ25 Conversion Wiring Harness

[Corax]

Hi Suba dudes,

I have a ej25 SOHC out of a 2002 impreza that I eventually want to lever into my brumby. When I got the moter I got what I was told was a 'complete wiring harness' and ECU with it. I didnt get anything in the way of a Air flow/mass meter or O2 sensor with it. My problem is that everybody I ask has a different opinion as to what sensors/meters that I need to make it all work. I went to a subaru dealer and asked their parts manager and he told me that the 2002 impreza doesnt have an airflow/mass meter but has a O2 sensor AND a fuel/air mix sensor in the exhaust then quoted me $900 for the two. I suppose what I am asking is does anybody know for certain what I need? Or in a perfect world does anybody have a 2002 impreza harness/sensors etc left over from a job they dont want anymore? Help! Please!

Cheers,
Corax.