So I heard from J-Crew and this is what they had to say in regards shipping to Australia:
"We're sorry that we're currently unable to ship catalogs or merchandise to Australia. Thank you for your understanding; we'll be sure to keep your name and this email address, on file for future reference in the event we begin shipping merchandise internationally.
We will be happy to work with you to ship packages to a friend or family member in the US, Canada or Japan. Please email us for details.
We also wanted to let you know that we've recently partnered with Net-a-Porter in offering select women's merchandise for sale internationally. If you would be interested in seeing what they have to offer, you may use this direct link:
We sincerely appreciate your interest in shopping with us and look forward to serving you in the near future."