lol... Yep on the Overkill... I always try to set my systems up for expansion later. This way I do not spend money twice. Even if I do not use it now, I know down the road it will either being cooling just a CPU, or possibly the Vreg, NB and a pair of GPU's...
I found some of what I was looking for as a reference point for the Fan/Shroud.....
I think I have settled on getting a few more Kaze 3000's and run both the Feser RAD and BIX RAD like this......
Case-FAN-Shroud-RAD...... in push mode....
This way I get the cubic air pressure needed and still be able to run them at half RPM for noise level acceptability during 24/7 times...
Off to Newegg... they always sell them for $7.50 each if you buy four....