Move the tank 1st or last by itself without all your other belongings. This way it is all you are focusing on at the time and you get as right as possible. If you plan on placing the rock back as you have it now, take lots of pics. It will be a pain in the arss, but worth it especially if you have corals that have incrusted them selves on various rock.

Oh and take it slow and be prepared with various pumps, extra water for water changes etc. Helping hands are always a + when moving a tank.