So a lot of people will say that the person who moved should do all the travelling BUT if it goes to court, that is not how the court will see it. Moving to be closer to family support is a totally legit reason, and if the mother makes that decision, nobody would question it.
So unfortunately travel arrangements are just going to be difficult. I also had to deal with big costs for travelling half way, the way I worked out to save costs on travel was to agree with my ex that both of us would drive the entire way there and back. Granted for a car journey that probably doesn't help a lot, but for trains it helped a lot to do one longer return journey, rather than 2 returns to a half way point. Maybe a train journey might work in your situation?
Time out of nursery is more nuanced, in that time with dad is limited and it doesn't 'increase' your cost per se, just wastes it. When school comes around it's not going to be an issue anyway because you can't let her take days off of school, so personally I wouldn't push this point if it's going to cause an argument because it really only affects the short term.
Are the days of visits quite consistent? I would try and make sure they at least cover a weekend, even if it includes a friday or a monday sometimes right now, because eventually she'll be in school and will only be able to do weekends outside of school holidays.
The money stuff is all neither here nor there if he pays the minimum amount you can't force him to pay more.
If I were you I would focus on nailing down some consistency, and make it clear that you're ok with certain things now but once DC starts school, obviously things will have to change. If you really want to push for changing things, then go down the route of slowly changing them over time to the school schedule so that DC will be used to it when they start school.