Doc:
I completely understand why you are unwilling to risk shipping expensive items to China, especially to someone with zero feedback. Who wouldn't be concerned?
My only point is that, while he did not contact you as instructed, he didn't violate the terms of the auction by not contacting you about an estimated price to ship to China. If you are going to complain to eBay that he violated the terms of the auction, I think you would lose. This is just my own opinion, and I'm sure others may differ.
If I were in your shoes today, I would make sure I got paid in cash prior to shipping. I would also make sure that I made a fortune on the shipping charges. Furthermore, I would include in the shipping charges the best insurance I could find to protect myself. As the buyer did not contact you about shipping charges as instructed, you should feel free to charge him whatever you want for shipping.
Who knows, if the "shipping charges" were high enough, the buyer might try to back out of the auction.