Gosh these are great, it's the Western boot gone wedge! I love the Ash boot's sleek profile and covered heel, but it's a silhouette that's hard to imitate. However I did find a few options that might work for you.
First up, from Nine West we have the "Peekaboo" ($129, piperlime.com). In genuine leather with a slightly less pointy toe, it's a respectable look for less.