I don't know a whole lot about this breed, I've met a few briefly but never worked or spent time with them.
How much experience do you have owning dogs? From what I understand, wolfhounds aren't necessarily an "easy" breed. It sounds like you can provide decent exercise, but keep in mind - many sighthounds can never be let off leash, so they'll need to stay on a leash when you go hiking and such. I have heard mixed opinions about whether wolfhounds fit this description, you'd need to ask some breeders or owners how their dogs do off leash. But there's a strong likelihood the dog will never be able to be trained to be offleash without a fence.
They also can have a high prey drive, so don't always make good dog park dogs. I'm actually not sure how dog friendly wolfhounds are with similarly sized dogs, but if there are smaller dogs at the dog park, it could be a problem, and you'd need to find another mean to get exercise. You could look for a rescue or an adult dog from a breeder who doesn't have high prey drive, but with a puppy, they may grow to not be good around smaller dogs/animals.
Again, they have very severe health problems. Most giant breeds do, but wolfhounds can be even worse than others.
Depending on your experience and your willingness to deal with things like protectiveness and prey drive, you might consider another sighthound. An adult retired racing greyhound may be a good choice, disregarding that they can't be let off leash either, you can find one that "washed out" due to poor prey drive so is a good dog-park dog, they can get quite large, and are excellent apartment dogs.
A borzoi might also be a consideration.
If you think you'll need a dog to be trained to be off leash, I'd suggest you consider breeds outside of the sighthound family, or possibly a rhodesian ridgeback, who are also "a lot of dog" for beginners, but do well in apartments and tend to be less prey-drivey than other sighthounds. If the dog park will be your main form of exercising your dog, you should be sure you're choosing a breed that tends to do well interacting with other dogs in groups.