Kigs,
Where are you moving to!?
That's a long time in a bucket. For fish and corals, bag em and then place the bags in containers. The rock can go in large Brute garbage cans.
Your water is going to drop in temp pretty quickly in 3 hours, that will shock the fish and corals. It could kill one and start a domino effect. I know, it happened to me.
Is it possible to have a small tank setup and waiting for the livestock for when you arrive?
That would be optimal.
Also, for corals, frag them before you go and give to a local friend that can give them back to you if god forbid you have a wipeout from the move. I know you have some nice zoas and they're easy to frag.