Tim,

With her you will want a Gentle Leader (GL) vs. a Haltie. I actually prefer the Haltie, but it's only for dogs who have regular sized snouts. She'll do best with a Gentle Leader that can be sized to fit her snout.

I would expect most pet stores - even small ones - should have a GL or be able to order you a GL. the advantage of a large store like a Petsmart or a Petco is you can get help from a trainer in sizing the GL (assuming the trainer at that store is a decent trainer, which isn't always the case). I'm sure you can get a GL on the internet pretty easily as well.

You'll want to read the instructions and watch the video. The dog has to be trained to the GL properly. It's a great tool when trained correctly.