Well good luck, your temps are fine.
Room temps 78F.
As an example, my CPU jumps from 34C to 47C in less than 3 seconds when loading with Prime 95 small ffts. Would top out at 56C or so.
GPU 43C to 49C in seconds. Would top out at 56C or so.
I got my fans pretty darn low, and only a 120x3 on my two GPU's, not near the heatload of yours by far.
Ohh Ohh your pump is rated at 60C, but your water temps are much lower, your just looking at the chip temp. With that much rad (well, when you get fans) your DT water temps will be maybe 6C over room temps. I'm sure your no higher than 10C now. So your wayyy below the high pump temp. At load your water temps are not even 40C, for sure.
Looking for cheap good fans? Umm some silverstones are poor rad performers, they are very poor pressure fans.
Get Some of these Yate Loons. Like MCR rads, the best bang for the $. Very popular, many use them, I still use them. Not on my rads, I splurged on Gentle Typhoons 1850s early this year.
Yate Loons:
http://www.petrastechshop.com/12yalod1cafa1.html
Ships out of Indiana.