Yea, you can buy them at most tack stores. Usually with western saddles they come with other off-billets toward the back of the saddle.....you would notice them hanging if your saddle did indeed come with a back cinch rigging.
Well guys...GREAT NEWS! The saddle does fit I just thought the lighter patches of fur were dry spots (pretty stupid mistake) I checked other parts of the saddle and as far as I can tell it fits! If you guys still have advice tho feel free to post! Thanks everyone! :)