What is the longest you drive to work?

I've already accepted a position at a local hospital and am supposed to start Monday. The thing is.. I was originally contracted with the hospital and bought it out when I was told I would have to maintain 80 hrs/pay period for 3 years. With all I have going on.. I just want to be a .9 employee and do the 36 hr/wk and def don't want to pay them interest on all of that if I get to 2.5 years and have a baby or something and quit work all together. So anyway- I bought out the contract figuring I could do 36 hrs/wk. Now the manager of my unit says all new grads have to work 40 hrs/wk on their floor and after the 1st year IF staffing permits.. you can drop to 36. There's just been a lot of miscommunication and misleading information.
I do have the opportunity to take a position in the exact area of care I want as a new graduate... the NICU! The thing is.. it's a couple hours away. My brother and his wife live there, and my husband and I plan to move there in May for him to continue his education. so I'm in need of some advice. Is it absolutely crazy for me to drive this once a week up and back in order to work there before we move... or should I just stick with the position here that I don't really care for just to keep things simple until May?! Am I being unrealistic? ANY help or ideas or tips would be greatly appreciated!