Nintendo didn't sell Wii U in my country, where I should buy?

Hello, I came from Indonesia,
I would like to buy Wii U, there is no Nintendo representative in my country, and they did not have forum also, so I post here.

Where should I buy Wii U?
some friends suggested buy US Wii U through some game shop , but one of my family member lives in Australia , I heard Wii U is region locked.
so if I bought game from Australia, can it run in US Wii U? or vice versa?

How many region is Wii U? because my Country is in South East Asia, which is mean near to Australia region , or Asia Pacific Region , or even US region because some console sold in my country is US region.


Thank you