Oz
Google E-Go and have a look at their electronic freight quoting and booking portal for Hunters Express.
Courier, Parcel Delivery & Shipping Services in Australia:Same Day Delivery
See if this link works first.
I've now moved a few big items through them at reasonable prices and with no issues todate.
Road freight depot to depot is the cheapest option but clearly you need to get the item delivered into a depot at the source and collect yourself. However they are pretty well spread with depot locations and can do collects at source too but that just adds to the cost.
Good luck
Slo