Help! Must move surprise litter

Hello,

I'm hoping someone can help me. I'm not new to rabbits, having owned them for a few years, but have certainly found myself in a new situation.

My co-worker purchased 2 "male" rabbits for her young son a few months back. Recently she has decided to give them up, and I took one in as a buddy for my male who recently lost his brother.

Fast forward a week or 2 and "Bonnie" was frantically building "his" nest and growing larger by the day. I did some reading online, provided her a nest box, and on Monday she delivered 5 kits, 2 still born and 3 seemingly healthy. I am relocating on Friday, and must take all bunnies with me. I would feel terrible if she rejects her litter because of the move.

She is housed in a large x-pen in my bedroom. I can replicate this set up in her new environment, but not during travel.

Should I keep her with the nest box in a large cage during travel, or her and the kits separately? The trip will be almost 3 hours. Has anyone successfully moved a rabbit litter, or have any advice?

Thank you,
Haley