Maybe you should do the trip before you accept the offer. If you can, travel from home to the office and back at the times you would be going. You will have to kill 8.5 hours in Harrisburg. Then you’ll know what your door to door time will be. And if you are living with your parents, there is no lease so you can find a place in Harrisburg as soon as you can afford to or as soon as you hate the commute.