like the build bro, BUT... the way you put thoose rads they do more harm than good.
not to be a dick, but you should return them, and get some proper rads instead. they only work if they are placed vertical, since they are build so that the they would heat air up, that would go up in the fins, and draggin cold air in from the bottom.
+they are made of aluminium and will eventually f#ck up the loop since you got a copper block.
my advise would be to place a 120.3 in the top. i love the look of the radiators like that, but they dont give much performance in vertical position, and will give like nothing, the way you put them there.
really hope your going to take them off, since its gonna bite you in the ass in the end:/