Farinder :
How about their durability? Wouldn't air coolers last longer and do less noise?
Also I would like to add that the upper part of the case, where the radiators of the liquid cooler should be placed, is a bit strange since it's barely open
Without good airflow case, your air cooling will be louder.
Of course air coolers are more durable in theory, but on the other hand, I have cheap TT pump running 24/7 for almost 10 years
Arctic liquid Freezer 240 is cheap enough to try the power of liquid cooling. And even if it brakes, you can fix it by adding fluid or replacing the pump.
If you can afford it, go with the kits from Switech, Alphacool, EK. They are better quality and are expandable.
there is no rule where to place your radiators, you can put them in intake config in the front or on the bottom. Or you can put them on the top or rear as exhaust. As I said, you can go with the much more compact Arctic liquid Freezer 120. I doubt you will notice the difference.
What is your case model ?