I got mine from Shenzhen Ele Technology Limited. Good price, and fast shipping. If you want to avoid brokerage fees at the border ship with slow option. (not DHL) http://www.aliexpress.com/store/601953
That’s where I got mine from as well
I want to warn about Shenzhen Ele Technology Limited seller.
Windows on Cube i7 Book tablets sold by this seller does not have a valid license. Yes, it is a valid key, not the MSDN key, but key is already activated on many computers and blocked.
You can check validity of your key in Microsoft support chat.
So, if you can start a dispute and try to refund about $50. But you have to do a video of tablet unpacking and chatting with MS support.