I'm pretty certain that you cannot get the Desert Dueler here.
If you want good tires for the sand, then Yokohama A/T-S are pretty good. For a Patrol, you'll want to go for the LT ones.
Other sand tires to consider are
Cooper Discoverer AT3
Michelin LTX if you can get them. These are awesome, but if you're going in a wadi they'll get shredded.
Nitto Dune Grappler are supposed to be pretty good as well.