Jeep's export TJs do come with rear Dana 44 axles and a Dana 30 in the front. So you are good to go, there's no need for a Super 35 kit. Your rear Dana 44 axle will be fine for nearly anything you can throw at it. The front Dana 30 is fine for wheeling even with a locker, it only gets to the point where stronger alloy axleshafts become a good idea when you get to 35" tires with a locker and wheel on tougher trails.
You can verify your rear axle is a Dana 44 by looking at the differential cover. A Dana 44's differential cover is shaped kind of like a big apple laying on its side, with lots of straight/angled edges around the perimeter. Plus it uses a threaded steel bolt as a plug for the differential fluid fill hole. So far as I know, all export TJs do come with a Dana 44 so this is what you should have in the rear.
The weaker Dana 35c rear axle that comes standard on US versions has an oval shaped cover with a black plastic snap-in cover in its lubricant fill hole.