Hey, y'all! I'm looking at getting an aussie saddle, but I've got an Annex QH that needs semi QH bars (6" gullet). Is this a thing for aussie saddles? All I've seen are 8" gullets and full QH bars. Also, I need a 16" seat in western, so an 18" in aussie?? Any others things I should look out for when buying? Is $400 a good price range? Any thoughts on brands? Thanks in advance, y'all!