It never dawned on me that most true Aussie saddles don't have horns! When I looked for saddles I mostly just looked at the endurance-type and not at the true stock saddles. It would be a really good idea to see if you can try one out ahead of time. They are certainly very different feeling. I took to mine right away, but I know that other people who have tried mine don't care for it (mostly those who use all purpose or jumping saddles). The Down Under Long Reach is a pretty close contact saddle, which I like. When I purchased my first (the Kimberly lite rider) I was looking for a close contact saddle to use for training that still had a horn (just kind of helpful when on a 3-yr-old). However, I decided I didn't need the horn when I upgraded to a Longreach. I then purchased a longreach with a horn from the clearance page for my mother. Funny thing is, I find myself using her saddle with the horn more often than mine--good to hang things on, extra security (psychological at least!). I guess it's a convenience factor. I like the looks of the saddle without the horn much better, though. The Longreach doesn't come close to comparing in looks with the beautiful true Aussie stock saddles out there. Those saddles (Syd Hill, Toowoomba, etc.) are works of art! But the Down Under saddles are nice, decent quality saddles for the price (but don't go for the Kimberly saddles, especially if you can get a used or slightly blemished higher quality saddle at near the same price). I don't know anything about the Ride About Endurance saddle. It looks okay, but the price seems to good to be true (if it's everything they say it is).
The Down Under saddles aren't made in Australia. They're made in Asia but they are by no means the "cheap junk" that many Asian-made Aussie saddles are. The Down Under website gives full info. On the saddles. I'm not sure if it would be possible to find an Australian-made saddle in the U.S. For under $2,000. I could be wrong.
I spent a lot of time looking for my saddles and I've been pretty happy with both of the Longreach so far (I've had one for 3 years and one for a year). The people at the shop have always been very helpful and good to deal with. They don't charge an arm and a leg for shipping, either. It is a good company to work with. They really want you to be happy with the saddle because word-of-mouth is the best advertising, so they'll do whatever they can to ensure you and your horse have the right fit. Which reminds me, be extra sure to get the seat size correct because the poleys can be really obstructive and uncomfortable if the saddle is too small for the rider.
Hope this was helpful. You probably think I'm a Down Under rep the way I'm pushing the saddles! I am in no way an expert on any of this. Like I said, I've never ridden in a true stock saddle--just the endurance types.