E3d head plus double fan

should be nice to use that
Simple_universal_E3d_double_fan_cooler
http://www.thingiverse.com/thing:170317
and
Smallest_E3D_mount_J-head_mount_for_the_Ultimaker
http://www.thingiverse.com/thing:159987
togever, but they do not stick ... till now ;)