Belgian Shepherd Puppy Wanted

I wish to buy an Belgian Shepherd, puppy or less then 2 years old. I am not in a hurry, since I already own a Groendael - not 100% pure breed, but extremely close, from all what I have read on the breed. (I could send a picture). But he is getting old, and althoughh still healthy, I know that in one or 2 years, he'll be gone. I own a large property in the country, and the dog has plenty of room to play. I live alone and I need a good gardian, and my dog is exactly what I need: protective but not dangerous, always alert to my needs and wishes. He was very easy to train as soon as I established that I was the master.