The morning of the move, take everything out of one room, put carriers, litter boxes, water, and a little dry food. Put the kitties in there and don't open the door again until kitties are ready to go into the carriers. If you are lucky, some of them will already be in the carriers sleeping.
When you get to the other end, do the same, one room until it is time to let them out.
Those little bottles for rodent cages, that they lick on get drops of water work well for carriers, they can still wet their mouths without filling up on water and having to use the litter box. It is very hard to get a cat back into a carrier inside a car.
I have moved numerous times with my cats, and this method works well.
If you have to stay in a hotel, make sure you have everything you need, food, drinks, snacks, suitcases, before you let the cats out of the carriers. It is no fun crawling around under a semi truck with a flashlight trying to coax a frightened cat to come to you.
Best of luck on your move. I hope this helps, and if you have any specific questions that I might be able to answer, please pm me.