Haha...yeah, but you know what a nightmare and expense the 'authorities' there would turn it into.
Problem with static caravans too, regards shipping....all size and no weight. Not a cheap proposition.
maybe find a blue print of a 30 foot static and build them over here they gotta be much better option than a nippa hut although a bit more expensive but with the cost of labour and materials they could be built very cheaply