A good thread on one way to ship...
http://www.zoosrus.com/forums/showth...4&threadid=931
Depending on the weather conditions... Personally, I think Shipping Zoos dry with saltwater moistened, CLEAN, papertowel in a pressurized bag, then put into a styrofoam + heatpack if neccessary. is better than using water in a pressurized bag. Seems to be gentler on the Zoo for acclimatization purposes.
Zoos are hardy and can be out of the water for hours in their natural environment.
Lots of people use thermoses to protect their zoos but it might be overkill.
HTH.