Atx Eatx problem ?

i am actually in for a new mobo at first i chose Maximus 5 formula . i found it perfect for my needs BUT when saw it was a eatx form factor mobo i thought i can't fit it into my case . i tried everyweare to find out my case's max fit and i am not sure but i think it only fits atx form factor however i know that only diffrence is its an intch or more wider i am curruntly using intel dh61ww and i can see some mother board fitting   points rigt benith my gtx 680 and these are over an intch away from where my motherboard ends and there are 7 pci out ( or whatever ) witch translates into 3 dual slot grpiccards and +1/2 .

my specs are

case : Zebronics zeb-888r
gfx : asus gtx 680 ref
cpu : i7 2600
1 x vertx 4 128gb
2 x hdd (3.5in) 1tb
1x 320 gb hdd (2,5in)
1x samsung dvd writer
smps : cosair gs700
mobo (current) : intel dh61ww

now performancs is not a problem to me scince i am in for either maxi 5 gen or formula board and at most formula
and plz tell me if this will fit