For that shipping price.....I'd hit that....twice!
That sounds incredible and yet sound way too good to be true especially for a very large CE that'll easily way over 3kg!!
I'd preorder it if I were you and perhaps then send them an email to confirm that you've been given the right shipping fees! You don't want an apology email just before release saying that it was an error on their system and that it'll actually cost well over $100 to ship!!! Better safe than sorry, and if it's all good....then you're WINNING!