most of the ones I see or know come in a container
so transport is not a major issue
I the one I deal with are shipped from china to aust specs
they are pre fab but not transportables they are fixed houses
price is about 75% of normal build cost but time is 7 days from slab to move in
I think I know the houses you are talking about, if it's the same ones I'm thinking of I saw on TV awhile back The pre fab houses here cost the same as the site built ones, I'm not sure if there's a real reason or whether it's just opportunistic practices (probably a little of both...) I think there'd be a good market for something quick that costs less...out of curiosity what are the duty costs of brining a house in to Australia?