Box it up as small as possible. Go to www.e-go.com.au. Set yourself up an account. Anything boxed is a carton in the drop down box on the website. Depot to Depot is the cheapest but others wise to postal address is not much more usually. I have never had an issues sending boards, sails, etc etc. Masts I put into PVC down pipe for protection, unless it goes to PacknSend.
Cheers