Would you say it's justifiable to go through a breeder rather than rescue if you're in search of one rare breed in particular?

We've been interested in Lundehunds for several years. We weren't able to find ANY through Petfinder until recently. Our latest search yielded one male Lundehund... in Alabama. That wouldn't be entirely impossible but I've not heard of too many rescues allowing an adoption so far (how would they perform a home check?).

I would really like to be able to rescue one but that doesn't seem likely.