air freight your animals and rock, you can dropship from airport to airport VERY reasonably provided they are packed appropriately.
If that is not an option, a power inverter and a couple of seios or airstones in the car will keep them happy provided temp doesnt drop or spike, you might even be able to run a heater.
Throw away the old sand, or rinse, bleach, and rinse again for reuse.
Your biggest concern is oxygen, second biggest concern is temp, If you keep both of these in order you shouldnt have any issues.
Dont feed your fish for 48 hours before the trip, this will help keep any ammonia spikes from occurring.
If water motion or aeration is not an option, make sure that the animals are in as little water as possible so the oxygen saturation s as good as possible.
Thats all I have off the top of my head, if you have any specific questions, fire away.