Well, any cage you can buy at a pet store would be too small anyway. And it seems like it would take at least a month until you have everything unpacked and bunnyproofed at your new place, right? Have you ever had her as a full house bunny? Sometimes it takes a decent transition period to work the kinks out, make sure she doesn’t chew the baseboards or the carpets, give you time to buy the appropriate bunny proofing for whatever issue you come across?
Both of my buns I consider house bunnies, as they are out in the house all day. But at night, they go “home” in to their pens, because 1, I don’t want them waking me up at night, and 2, if there’s an emergency, i want to be able to grab them and not have to worry about finding them. I would recommend buying an xpen, even if you end up having her have full access, it fold compact and you can stash it away for a situation you might need it or even to take her outside in the warmer months for play time. They are about 40 bucks on Amazon 