I was also left while pregnant so can empathize with your pain and situation, but in terms of courts and child arrangements no one cares that he broke your heart- it's brutal but true. These details need to be processed in therapy or with friends but don't impact the child contact and decisions about the time baby spends with him.
Did you put him on the birth certificate? If not you can pretty much do whatever you want (but please be moral).
The best approach is the he has short visits often. Much harder if you're two hours away.
If he currently only has her overnight once a week, why does he expect that you moving means he gets two nights a week?
Can you cope with him having her for two nights? Would baby be ok with that? If so then two nights every other weekend is the same as what he has now. To me baby is still a bit young for that.
Perhaps he could travel to visit and take baby out for the day near your new home one day each weekend (so baby isn't stuck in the car) and then the next weekend you drop baby at his eg on Friday and he takes her overnight for one night. Then review when baby is one.
Does he have any flexible working request possibility with work, eg maybe he could have an early finish one Monday a fortnight and he could come and spend the afternoon with baby on those days?
Yes as PP say it might be court ordered that you should travel, however, this guy does not support you mid week and your family will. You need support. He chose to leave while you're pregnant I don't see why he should have his cake and eat it and have an easy life when your life is so much harder with double the work. Your baby needs a happy well supported mum more than it needs a dad who isn't inconvenienced by travel time. After all your trauma I think you should put your support needs first.
You also need to be prepared that he will likely be able to deduct petrol or train ticket to visit baby from his child maintenance payments to you.
I would move quickly if you're definitely going to so that he can't block you with court.