There are so many purebred /mix GSD's in high kill shelters throughout the country. You might have to wait for the right one to come along, but sure you'll find one.
It could be a huge benefit for yourself & literally save the dogs life if you offer to foster the dog from the shelter for a few weeks also. You can use this as a trail period
to see if you could handle a GSD in your apartment with roommates. Many students make great foster homes with shelter dogs.
You'll be providing a loving nurturing environment to a needy dog without the 10-14 year commitment.

I'm sure you have good intentions of providing the best for the dog / puppy. Once you graduate from college / move what will happen to your dog?
Would you be willing not to move back home or take a desirable new rent if they don't allow your new dog in the future?
are you willing to fix / pay for any damages your puppy / dog may cause to your rent? Those are the harder questions you should think very hard about.

I owned a GSD in a 2 bed room apartment successfully years ago. Only work by me getting up at 5:30-6am to give her an 45 minute walk through the park + play fetch before I left for the afternoon.
I repeated this when I arrived home & then again I did a shorter walk + game of fetch before bed time. Plus took her for training 3x a week.
When I wanted to move out my landlord charge me for scratch screens on the windows & carpet cleaning to get the doggie odor out. While she never potty inside or chewed
there was some minor wear & tear I had to pay for owning a dog. My search for a new place went for 235 new apartments to choose from down to 3 which would allow dogs.
Those 3 all charged more $ for having a dog with less amenities than the other rents. but for me it was a small price to pay for keeping my dog.
Our next move was into our first home with a large fenced in yard.