I can't think of any regular stores that carry them, but you should be able to find a good deal on a used one (which is often better because they are nice and soft from use) on the Facebook group "babywearing on a budget" and have it mailed pretty quick!
I prefer woven wraps, my flytai, or a ring sling, but for a structured buckle carrier I highly suggest a Lillebaby Complete. No need for an infant insert!!