Problem with SD is a bend over D post, i think.
In case of sump guard . NAS versions of mantec one have cut out. EU spec V6 can use the same guard like other engines.
Cut out was done because V6 in NAS spec have many problems with overheating engine/auto gearbox.
Do the NAS models have the air blast fan thing blowing air against the auto gearbox cooler? The air blast option was fitted to hot climate Freelanders. They also have a vent in the front bumper to allow more air to pass through to the blast fan/cooler.