Thank you guys for replying,

Changing exhaust manifold is definitely on.
The belts on engine have slight cracks on inner side, should i replace them?
Is there way of telling if AC is gone bad/can be saved. I was testing it today it kinda blew luke warm air, It was on or 10 minutes. I read somewhere that if compressor has not gone bad, can be saved by putting oil in it and adding freon. I have used AC once before and it emitted slight cold air.
I have looked at exhaust hangars, they are holding up fine but cracked so will need replacing but don't think they are touching anywhere. The Y connector will then be replaced.

Any info that can avoid getting me ripped from mechanic will be appreciated.

Thanks,

Dracs