My son and I go every year in kansas as well. It is our favorite kind of hunting...In my opinion you will need:
1) Good quality binoculars for each of you.
2) A good spotting scope. Not a must but very helpful at distances beyond 500 yards.
3) An accurate gun(s). Should have good to very good...
I am not your guy to answer that question , however I have a friend and his wife breeds GSP's in Johns Creek area. They breed for quality hunting dogs /companions. they are outstanding pets and great pointers. They are not a "puppy" mill . If you have not chosen where you are going to get...