The contingency fund for the container import costs will include your:
Handling, fabricating custom timber frame stands, packing, import & local port costs, sea freight, customs clearance, import tax & GST of approximately AU$5-$12K Inclusive GST.
Anything not spent & leftover is yours to keep. No tricks!
Transparency between you & us is the key to a cost-effective solution.
Be ready to reap the magnificent long-life rewards that your windows & doors can bring!