I just noticed this special 2001 Td5 limited edition that looks like a NAS 90. I don't know how many were built or where it was sold. Maybe it was limited to the gulf states. It may have been the last Defender that came equipped with the NAS ST roll cage.
page has the following info for it:
"A limited edition 90 that was launched in 2001 in the gulf and Europe with the following specs:
All County Colors
Full Roll Cage
Freestyle 16inch Alloys
Stainless Steel A-Frame