A good working weight so they are still fast on their feet is around, females 100lbs=120lbs give or take 10lbs.
Males- 120 - 130 but up to 150 lbs with ease. Many people like to keep them lighter because they have cat like paws and can jump very high and climb fences. So as I said the weights I gave depends on the breeder so you can take 10 pounds either way. I will find a clip and post it of a breeder I know.
As stated, they are a very pretty penny, but if your from europe...spain, poland, germany, etc you can get them a bit cheaper. Me, living in the USA shipping is as much as the pup. I have seen 8 week old pups 30 lbs plus...