Talk to Nate, he should be able to tell you how to transport everything in a way that will allow you to have it all setup and running including having the seahorse in it the day you arrive and not have ill effects from the move.
You'll be better off talking to Colleen on that. We were talking about that a few months ago (as we were settling into the new tank), We've moved tanks a minimum of 9 times since 2001 (6 times since 2004). Out of those moves, we've lost a grand total of I think 3 fish - and that was the time that I made a few of the decisions while she was running other errands.
