I moved through several apartments with one bunny and finally from Massachusetts to Florida – he rode in my car for 3 days with me – so I know how hard it can be. The move for you is very stressful, and you don’t need to worry about them as well.
One suggestion: set up their xpen right away and possibly get a cheap shower curtain liner for the floor if you’re worried about the new floor/carpet.
Set out open boxes of Baking Soda in several rooms to start clearing out the odors. Put them out of reach of the bunnies, like on window sills and desk tops. You might have filters on your air, so if they’re the kind that need to be changed, get the cheap ones at the grocery store or Walmarts and swap them out pronto. If there’s a screen from where your air originates (It might be in a closet with the water heater) you can use a dust buster or vacuum hose to just suck out the area around it to try to clean up old stinky dust.
Your bunnies will most definitely forgive you – probably with the first batch of treats. I have no idea if this helped, but I used to carry Spockie around the whole apartment and “show” him the new rooms, talking soothingly about where we were, then put him back in his house. Just try to stick to their schedule as much as possible. Feed the same times, play, etc. Reinforce the familiar. It seemed to help when he was in a strange room, but OH! That’s his favorite couch and pillow right there in it! He’d play with stuff he liked to play with and it made it home for him too.