You said that customs gave you an issue? I was thinking of getting one, and found it here but wasn't sure if the transport would be as high as what you mentioned.
http://m.ebay.com/itm/141750813443?_mwBanner=1
Just an update, I just agitated my fermenter, which had stopped actively bubbling at least a week ago. The air lock is now bubbling again, not aggressive bubbling but a bubble every couple minutes. I will keep an eye on it and see how it does