If you don't mind higher cfm fans I'd look at a BIX, there a dual row high performance rad for cheap.360 BIX
You need some decent 120x38mm fans on one.86cfm Pana .These are what I use for rad fans.115cfm Pana .120x38mm fans have a higher static pressure and will perform better then 25mm thick fans on a rad. Well at least the thicker higher fin per inch rads.
Some stuff you might like to read, I'd take my time picking parts, look around a little and you might save some money. Decide if its all out performance you want, high performance generally means higher cfm fans and a lot of rad surface area. If you don't like loud fans try to maximize rad surface area so you can use lower cfm fans.
I'll leave you my PDF also, it has some basic stuff in it.
On these rad calc's enter your OC wattage, rpm of fans you would like to use, a bar graph will pop up on the bottom, thats your rad out water temp's delta to the rooms ambient. Try to keep that at 5C and under for good OC'ing performane, the lower the better of course. There is a shroud variable in there also, it shows how much gain you'll get by using them.
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