Saving water is useless. Bacteria that supports the bio load of the tank lives in the filter media and other surfaces in the aquarium/setup.
This is totally wrong. We move tanks professionally at work. Move as much water as humanly possible to avoid shocking your fish. Not bringing the water is like doing a 95% water change on your tank.
Also, don't move the tank with gravel, and especially not wet gravel. If you carry the tank at anything other than perfectly level, the weight of all that gravel and water will press against one side of the tank. You can damage or break the silicone seal. Put the gravel in a bucket with water.
I move a lot of tanks, we just did a 220 full blown reef set-up. Fortunately you live close. This how to do it...
-Get a clean 50 gal garbage can, or a couple smaller ones. Put the water in there.
-Put the fish in one, if you're worried use an air pump
-Get everything out of the tank
-Carry tank and stand over, with as much water as you can bring.
-Level them properly. Add water and gravel back.
-Fill with as much old water as possible. If you're fish are used to weekly 50% changes like mine, you can get away with bringing half.
-Get filters heaters going
-Bring fish over in buckets, acclimate in case of temp difference and add to tank
-Leave lights off