Fan placement in 750D

I have a 750D waiting to be put together and I've been researching fan placement but can't come to a decision. I know the front panel mesh accessory is coming out but I'm wondering if putting in 2 SP120's in the bottom and taking out the front 140's (I'll be removing both HDD caddies) would give me enough intake. I have a 110i GT in the mail and I'll be sticking with the AF140 in the back exhaust. Do you feel this will create adequate airflow in the case? Will this end up being more of a negative or positive airflow system? I'm not sure since the top fans are running through a radiator.



Also, would you recommend running the 110i in a pull or push config?



Thanks!



Nick