Wow, that's fantastic, Val! It looks wonderful and I'm sure the pups are really loving it!
They have sooo much room to run, they must be in heaven! I remember when I had the very back of my yard fenced in. We had to remove part of the old chain link fence to make room for the new posts, so I had to use leashes for a couple days while the posts hardened. It's such a great feeling when it's done and you can just open the door and let them right out.