Are you moving to the next room or the next town?
Either way, your aquarium is going to be
heavy and you want to be very careful as your moving it. Even when only half full, the thing will weigh in about 135 lbs. If you've carried a bucket of water, you know that if you're moving and you stop, the water keeps moving. Thank you Mr. Inertia. The same will happen in your tank, but multiplied several times. Also, a lack of support at any corner, or even tipping too far in a direction can severely weaken the silicon joints and cause a leak.
If you're moving from one room to another, the simplest thing is to drain the tank at least halfway (...might as well be top water, two birds and all

), and get a buddy (or two) to grab an end. Carefully.
If you're moving towns, you would probably do best with a cooler and DC air pump. Put the fish in the cooler and drain your tank pretty low...
Good luck... Remember, your Angelfish are a delicate breed, and your Balas are twitchy already. Keep things steady...