If you have more fans you can move the same amount of air with them running slower and making less noise. Also, a front exhaust is generally a bad idea.
How about running just a single front intake giving the case positive air pressure?
I could also run a second 120mm as exhaust on the side panel, then having the front intake and side exhaust.
I would go with a more common front pull and rear push fan setup, but the 92mm fan size is an odd one, and I don't want to pick up another fan.