Well it sounds like you are down to shooting gophers on the midwest plains. Make sure to watch your wind on them gophers and set up your decoys into the sun.
On a serious note - If i had that much time off around then, I would be chasing alpine bears on the KP like mentioned above. Bears everywhere, tons of little lakes to throw flies at trout, and you can load up on sockeye in mid June before heading home. You could probably sell the raw hides for the cost of the tags. AND I would be glad to come and take the meat off your hands! I get tons of visitors every year and between moose, bison, goat, caribou, and black bear; the black bear game bacon from Indian Valley is always the crowd favorite. But i get where you are coming from. Good luck and I hope you find a way to use that valuable time wisely!