Luck has little to do with it. There are proven techniques to moving a tank. Keeping the stuff underwater is, of course, the biggest one. Letting the tank cool during transport is another. Don't try to heat it to regular temp, but don't let it cool below 60.
Having more saltwater is a very important tip. The move stirs things up so having another container, a moving tub/cooler, with good water is invaluable. Any rock and coral that can't be covered by the water left in the moving tank can be placed in the cooler/tub. Before starting, doing an exchange of water from tank to tub is helpful so that LR and coral aren't just going into different water.
These are a few tips. Hope this helps.