What's your budget?
I'm not a fan of koolance at all. Almost dislike them as much as thermaltake but lets not go there lol.
I checked your other post. 570's get damn hot. And if you overclock the i7 and gpu that 360 rad might not be enough actualy probably wont be.
I mean if you get a thick 360 rad up there and aren't afraid to do a push pull with 3 fans outside the case then I could see it working.
But ya I like lazymans mod with the added 240 rad !
Here is Dazmodes watercooled 800D build. This is part 1 which shows how thick of a rad you can run with just a push configuration.