My girlfriend had just recently ordered a new fridge ( $800 ). It was delivered in it's own box. I got thinking to myself this would make an excellent box for shipping planes. I should have taken some pics of the box. It was reinforced at all the corners with wood and is the right size for an 60 size plane or larger. Only a trip to the appliance store where they would probably be glade to get rid of any surplus fridge shipping boxes. Just add some of that 1-2" blue foam board cut to your planes fus shape and your off to the races.
http://www.crbest.com/crating/crating.htm
Grinder.