i just wack mine in the back of a car, between the seats. Think i've had it leak once, but that was due to the o-ring on the pump being to small, never had an issue since.
Just keep it standing up right.. I'd worry more about things falling out of PCI/PCIe slots than the watercooling setup.
Just keep it standing up right.. I'd worry more about things falling out of PCI/PCIe slots than the watercooling setup.