I just shipped Asteroid Annie south to the US.
Buyer arranged shipping, pickup and all paperwork. (So I can't advise on that part) The purchaser needs to comply with state laws when importing, so every state is different. Like Adam said, no taxes, just shipping cost on your end.
Wrap on a pallet, built a wood wall on 3 of 4 sides, (athough this may be a bit extreme re:walls) blanket it, cardboard and wrap the head to protect the bg (SS machine) and shrink wrap pin in blanket or material and load strap it down. Use 2 load straps in an x-pattern over pin to pallet. It is worth the $20 to secure the pin with these.
Then hope for the best knowing you wrapped it as well as you could.