The top section is, at most, 33mm deep so I really can't see how the EX would fit in there.
Inside I've got Gentle Tyhpoons which are ~25mm thick (though mine are closer to 30 with a rubber "washer" in place) and there's ~15mm clearance to the ram/cpu cooler and ~10mm to the cpu fan header. That gives a total clearance inside of the case of ~40mm to the cpu fan header and ~45mm to the ram meaning that a thicker rad would fit inside.
If you remove the lower HDD tray there'd be room for a full size 240 rad (there's already fan grills and fixing holes in the bottom of the case) but you'd have to be creative with the pump mounting.
You could also do what I've done and remove the middle HDD tray. I've used this space to mount the pump and left the case fan in place. There's more than enough room to get a full thickness 120 rad in there if you wanted additional cooling over a slim in the top at any point.
Thanks for the measurements, should be easier to find a rad for the top now with those measurements.
I don't know how you mean for the bottom, I can see where I would remove the cage but I cant see how I could get air from the bottom of the case over the radiator.
At the bottom of the case it goes PSU...120mm Fan...Bottom Cage.
I could see the other option working fine, using a thin rad for the top and a second radiator in the middle cage, I could mount the pump on the top of my optical drive which is at the bottom.
Thanks for the input, i'm struggling with knowing what size tubing to use? also the fittings.