Thinking ahead is always helpful with anxiety, even if you plan a few years ahead
I also second getting your bun registered as an ESA. I trained and registered my mini rex to be mine, and he is just wonderful. Weve trained together and are so close, he can “feel” when im anxious and will come to bother me until i feel better. Buns are amazing ESAs
For road trips with buns, there are a few ‘rules’ to fallow for rabbits who are not used to driving around often. First, the bun will have to be in a carrier type of crate. When my buns are on short rides, we put them in cat carriers (big enough to sit and lay, but not big enough to stand). On longer trips, we use a small/medium dog crate and strap it in so it doesnt rattle and move too much while the buns are in there. You might want to take both if possible as sometimes buns will freak out in the bigger crate if they are not used to it, and feel safer in the smaller carrier crate
Youll want to add hay and bedding to the crate, and a water bottle. It might make your car a bit messy, but its worth it for the buns to feel comfortable. Youll also have to stop every 1 to 3 hours to ensure the bun is eating and drinking. When you stop, youll want to tempt your bun with greens if possible (we use a small cooler for greens) and youll want to pet him for a few minutes to make sure he isnt too stressed out. After about 10 to 15 minutes of feeding, watering, and petting your bun, you can set back onto the road for another 1 to 3 hours before having to stop and do it all again. If you stay at a hotel during the trip, try to bunny proof the room as much as you can (we bring extra tubing to cover possible wires) and let your bun run around for a bit to exercise and destress a little
Before you move, make sure there is a rabbit certified vet near you will be living. If your rabbit gets overly stressed on the road and/or possibly stops eating, youll need to make a vet appointment with the new vet asap to help avoid stasis