For me this is a easy task, I have moved tanks from a distance of 15 miles to 450 miles. What you want to do is start early, like states above lots of buckets if not rubber maid totes. You know the good thick ones.
First you want to remove any corals, this process depending on how many will use up the most totes, you want to allow room in each tote not to touch or crush each other. Another plan could be to go to your LFS and see if they will give you some fish bags.
Once all corals are remove you can remove the live rock, if there isn't any corals growing on the rocks these can all go I to one tote. But if they is repeat step one with a different tote.
Once all the live rock is out remove all the fish into a bucket. For this step its good to use an air pump with an air stone to keep the water oxygenated while you finish up and while setting up. Next remove all the sand, if you want to reuse it's good to rinse it very good, however I would just by new sand. Removing the sand will/ can release stuff that was trapped. Try to save as much water as possible during the move.
Load up everything into the vehicle you are using. If you bought new sand ensure you rinse it could, once rinsed place sand I to tank, place the live rock in the way you like. Next take all the water you saved and place into tank, next step would be to either make new water if you need to to ensure the corals are under water once placed in the tank. Last would be to add the fish and clean up. After you are done, make some new water for a water change the following day. It's good to do a water change after a move be ause the move will stir up a lot of gunk that will settle on the sand bed.