JKDer

Pull will always be the best thing for easy dust cleaning since on push the dust would collect between fan and radiator.
But since there is a big air filter in the front, just mount the fans where they originally belong and mount the radiator on the other side.
Thats at least how I'd do it, just try it and look what works / looks best. Shouldn't affect performace anyways.
 
So that I can see you repied, you can either @Thx And Bye or quote me. Otherwiese I won't be notified.

1. Go to the BIOS.
2. Increase the multiplier a bit at a time and stress test using Aida 64, Realbench, Prime 95, Intel Burn Test or Intel XTU for at least 10 minutes each time you bump up the multiplier.
3. Once it becomes unstable, try increasing the vcore by a little bit. Stresstest again once you increased the voltage.
4. Keep doing this until you hit temp limits or you are using 1.4V.
 
Max temp your CPU should run at: 85C
Max voltage you should use: 1.4V
Remember that a higher multiplier doesn't = higher temps. Higher voltage does. 
 

Corsair H110i for $139.99 from Corsair (cheaper from other outlets like newegg)
http://www.corsair.com/en-us/hydro-series-h110i-280mm-extreme-performance-liquid-cpu-cooler
The biggest difference is that Corsair's AIOs come with 5 year warranties that cover all of your hardware (in case it breaks) unlike Thermaltake.