Have you had a look at the Oshiro site? pricey but comes in both painted and unpainted versions
http://www.oshiromodelterrain.co.uk/index.html
then theres lost village terrain
http://www.lostvillageterrain.co.uk/
found a site the other day with some gorintos and spirit statues that would work for scatter terrain
http://mastercrafted.co.uk/product-category/scenery/
and ofc the plastcraft terrain for kensei/ fukei
I have 3 of their houses and theyre easy to build and looks ok, If I had the cash Id go for the Oshiro ones
then theres the kickstarter with the fishing village and other asian terrain if youre in the us
http://renaissanceminiatures.com/webstore/products/eastAsianOS/
Im sure Ive forgotten something