Where's the MAF Sensor in my Fabia?

I have a AUB engine and it's a little different than the others. There's a plastic cover on my engine. I manage to pull it out and clean it. I was doing some research and my next step is clean the MAF sensor, then change the temp sensor, plugs and the oxygen sensor. Of course I need to know if this engine have one first, jeje.

My car have 66,045Kms and i'm planing to change everything that's necesary. I Just acquire it and don't know what the old owner did to the engine (maintenance).

Also, I need to know the gap in the spark plugs and what's the best one.

Of course i'm not an F1 race driver so I need a good price=performance ratio.

Sorry for all the question. I'm hungry of info.