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I am interested in placing an order for a quantity of four units of your specified product to be shipped to Australia. Could you please provide details on pricing, availability, and any associated delivery timelines? It's important to me that the items arrive in optimal condition and within a reasonable timeframe. Additionally, I'd appreciate information on your payment terms and shipping options. If there are any special requirements or considerations I should be aware of for customs clearance or handling, please let me know. Looking forward to your prompt response so we can move ahead with this order.