Getting it here and making it legal here are two separate problems, the way I see it.
If you drain every drop of fluid, then dry it all out, you can ship it in pieces or take parts in your luggage, or some combination of the two.
Once it's in the states, you don't have to worry much about legality, because they sold them here. Just make sure you get a new vin tag or something. It's not like they're gonna find out it was stolen or something.