As someone who has been collecting American comics in Australia for over a decade now, can I gently suggest that you're thinking about that the wrong way? Yes, the books are hard to find in Australia (but keep looking, I have had some excellent local buys) but you shouldn't pay any more premium to get them locally than the cost of shipping them from the US. Some sellers here will do that, and all of the big dealers will. The postage costs from My Comic Shop in Texas are very reasonable (about US$15), so look at their extensive stock and see what you can find.