You could place the 2 bottom intakes, and put one or two side fans. If you have more intakes you achieve positive pressure and the dust is more likely to stay out of the case, but the intakes should be filtered for that to work.
Besides if you have more exhaust fans, the dust will be suck into your case and have a really bad time cleaning the dust filters or your hardware.
Having a push pull is better, but you will see only a little difference in temperatures.
Thanks for your reply.
The case has got dust filters all over the fan areas except for the side panel. Cleaning them wont be a big problem.
Hmm..I am confused, Intakes lets less dust into the case than exhausts?
Also, exhaust fans are crucial for good airflow/temperature control right? So, more exhaust fans or more intake fans?