Hija,
a friend of ours had Wolfhound x Whippet /Greyhound ( on there abouts ) lurchers, great on most quarry, take some time to pick up speed but then don't stop....
Have Wolfhounds myself and there is nothing wrong with their killing instincts but for them to catch something, they have to chase it down first. They have a lot of stamina but lack in intial speed. So you need a lot of space to run them on anything. Lads we know in the States use Wolfhound crosses for Coyotehunting. Can't find the pictures of the dogs right now but will post them when I manage to find them.
Keep hunting!!!