One month isn't enough to really get a lot of results. Spend it on three if you can swing it. If you can't afford three months, find someone close by to you and do weekend workouts with them.
If not, just go to a game bird ranch and spend $800 through the summer and into fall on birds. Putting $800 of birds in your dogs face when he's a bit more mature will pay off more than one month of puppy training. With a grain of salt.......this is as long as you're doing some obedience training and actually working with your dog.
If you're not going to work with your dog and just let it get crazy....definately just send it to someone.