i've moved a 180G setup from houston to dallas using a uhaul trailer.
If you are moving livestock and liverock, then make sure you get large buckets, preferably with lids. Put liverock in the buckets or containers, add some saltwater (not necessary to have all rock submerged).
Put livestock in insulated containers if possible. I would load all these items towards the front of the trailer.
For the tank, make sure to bring some 2x4's to put onto the bottom of the trailer so you can set the tank on. This will help it be on more of an even surface as well as letting you get your fingers under the tank for easier loading/unloading(unless you have suction cups)
Bring tie downs to secure items.
Try to get some good friends to help you with the move. bribe them with food and drinks =)