what i would do is try a couple of runs with a 2$ fan, like a case fan, see if you do a GOOD job.
ergo no spills, drips etc and an even coat.
but in all honesty for the price they have, i would leave those fans alone. here in switzerland we get a fan for around 40fr. get 5 of those + 100fr of a cooler and your looking a pricey thing. (dollar to francs is almost 1 to 1).
but IF you know what your doing, go ahead! make a log and post it on this site, but if you're not called Tom and you don't do it often i would leave the modding alone
veni, vidi, left
CPU : AMD PhenomII x6 Black Edition 1090T @ 3.72GHz
RAM : Corsair Dominator GT, 2x2GB, DDR3-1600 email@example.comV
VC : Asus HD 5870 V2 1GB
MB : Asus Crosshair IV Formula
SSD : Intel X25-M G2 80GB
HDD : Western Digital Caviar Green, 64MB, 2TB
PUS : OCZ Z-Series 850W Gold
Case: Cooler Master RC-840-KKN1-GP ATC 840 - black
3DMark Score P17779 3DMarks