I checked re the shipping from The Last Detail - here's their reply -
The cost to ship this part to Queensland would be $49.00, sent U.S.P.S. Airmail Parcel Post. The current price of the part is $66.00.
US$49 for shipping !!!!!!!!!!!
As usual these shipping charges are crazy, which is why I always see if I can repair the part, or source it in Aus first.
When I tried to buy some Zaino polish I came up against an even worse problem - they wouldn't ship overseas - eventually a very kind member of the Corvette Forum bought the Zaino for me and posted it to me for US$6 - it took 10 days to arrive !!! This guy trusted me to send him the cost of the Zaino and postage - there's some really nice people out there.
The point being that the Zaino would have been the same weight as the tensioner and packed in the same size box.
For US$6
OK, I'm a cheapskate.
S'nut