Polish Lowland Sheepdog Puppy Wanted

I am loking for a Polish Mountain dog, for our family , it can be a puppy or young Polish mountaing dog. I have three children ages 9,11 and 13, we live in the mountains and have a ranch that we spend a great deal of time at during the summer, we are very pleased to learn of your reply in regard to a polish mountain dog Kind regards Jeff Gorsuch