Moving a tank is a LOT of work!!
Is it possible to do the house move one day and then the tank the next? I guarantee you that once you get to the new place, the wife will want the bed set up first!! Telling her she's not going to get a bed for 6 or 7 hours while you play with the tank is NOT going to fly!!
The advice you are getting all sounds great... till you step back and look at the reality of what you are doing. You are going to have to tear the entire system down. This means all of the plumbing and everything.
Getting the stock and sand into buckets is easy, but it is just the first small step. Cleaning out the sand bed into a bucket (a plastic dustpan works really well for this). I would NOT go larger than 5g buckets as water is HEAVY!!
Now, once you have everything moved into buckets and as much clean water saved as you can, you have a tank, sump, plumbing, stand and everything else to deal with. All the plumbing will need to be disconnected. Drain the overflows, pull out the standpipes and bulkheads. All of your wavemakers, pumps, skimmer, and whatever else you run all will need to be removed and packed for the move.
Now, you get that all done.. its been a long day already.. You drive 5+ hours to the new location... Do you REALLY think you will be able to rebuild the system now? Your wife wants her bed. The kids want dinner, You are tired, hot, irritated, and sore and all you want is a beer and peace and quiet!!
It's the weekend.. its late, you start putting all the plumbing back together... Drip, drip drip.. ***** it's too late to run to the store to fix this.. And on and on...
I will tell you from firsthand experience as I just upgraded my 55g to a 135 with sump. It took me 4 days just to make the WATER for the move. The actual teardown of the 55 was one evening, then setup the new tank, stand, and plumbing took most of a day, I STILL have a leak after 2 weeks!! Oh and then, if you are going to wash the sand, figure a few hours for that and if you don't, at LEAST overnight for the tank to clear out before you can add stock back in.
I honestly would advise you to figure a week turnover between first removing stock, and reintroduction... Minimum!
Once you get to the new place, a couple large totes from Walmart, will give the fish a bit of breathing room instead of the buckets. (I used 2 30g Sterilite totes for my tank swap)
Just for an idea.. it took me 5 days start to finish to make my tank swap (NOT including time for making and mixing new water)