I'd consider maybe getting a smaller tank if a move is possible then, with a large sump/refugium. This way you'll have the small tank which is easy to move, but the large water volume to keep your parameters in check. I just moved a 90 gallon, that had been set up for about 2 years, and all the fish survived and stuff, but it only took 30 mins (it was all in the same city) I can not imagine moving cities, and having good luck with a move.