Marco, told me to sell all live stock, and coral and start fresh, I wished we took his advice every time I see an Aussie elegance my heart sorta sinks, it had over 32 mouths on it and was larger then a cantaloupe., looking back onto the chain of events my suggestion would be have someone you trust host your prize pieces, frag out to some friends so if you loose one of your corals you can get another start, sell you delicate fish. Unless your planning on moving a tank into your new house 2 months prior to your move, cycle it with water changes from your old tank 1/2 old & 1/2 new give your skimmer time to break in. The fish you keep put them into QT, for at least 7 days prior to putting them in the big display tank. This way will hopefully keep you from having fish get so stress that you get a ick outbreak, with a larger tank your lighting will be different, even the natural light that the room gets will be different. So really do a lot, of planning, coordinate with those who do it for professional, and those who have done large volume tank moves.
I know Fred made a comment regarding the depth of the tank and being able to reach it but I thought I would add a few things for our tank move. Make a list and check it twice, say a prayer and be ready for the unexpected.
With that I'll say goodnight! It's way past my bedtime