This ^, definitely. Just do a partial water change each day for several days before the move, replacing the water removed from the Aro's tank with water taken from the new tank. After a few days you will have achieved an identical or very similar pH and should have no difficulties.
I've found that the ideal net for use on large fish like this is one of the rubberized landing nets sold for fishermen. They are specifically designed to minimize damage to the fish, and are far gentler on skin, scales and fins than the older nets made of knotted cord or fabric. You may have to hunt around to find one with a small enough mesh size, but the effort will be worth it.
No matter how you slice it, this will be a bit of a gong show. Hopefully the transfer time will be much less than your estimated 30 seconds; carrying a panicked, thrashing large Aro in a net for a half minute would feel like an eternity.
