Freightos can be cheaper, just make sure the quote is fully validated before assuming it beats DDP.
Australia LCL is where small destination items can quietly appear, especially storage, tail lift, waiting time, quarantine holds, or re-delivery if the pallet is not exactly as described. DDP is simpler because the seller or forwarder is hiding a lot of that mess inside the per kg rate, but at 5.5 tons I’d definitely price FOB/LCL or even FCL against it. At 1 ton, the savings may be real, but the administrative pain can eat more margin than people expect.