Changed the loop again and moved the pump to the top of the radiator, I don't think leaving it on the drive bays with the HDD's absorbing all the vibration was healthy.
Here's how it looks now:
All I need to now is to cut the case with a dremel like this video at 9:30
so that I can perfectly fit the rad into the fans and tighten it with some screws (And make it look pretty like he did at 10:54
), but that will have to wait another month until I move to my house in Spain.
I'm also considering buying an XSPC 5,25" Bay Reservoir
when I have some money in the future, really like it and removing that big reservoir I have now would make the rig look cleaner.
Another reason I changed the radiator holes to the right side is so that the left ("bottom") GTX680 have more airflow from the bottom fans below the rad, the other way around had no fins under that GPU and it got really bad airflow, now its a lot better.
Hope you like it.
PS: And yes, I will cut those zip ties when the leak testing is done.