can you rotate the housing on your pump? are you planning to shroud the rad? what thickness fans will you be using? to make more room you could mount the rad to the chassis and stuff some 25mm fans between the front of the chassis and the bezel. maybe stand the rad off 1/2" or so and shroud it (so air wont just blow out of the gap). the fans should fit there; check to make sure though. obviously some bezel modding will be required so get that dremel ready
your chassis looks, as far as i can tell, exactly like my
AOpen HX08. i dont know the model # of your case though.