Australian Shipping Calculation integration for Big Commerce store

We are an Australian based company and need a shipping calculator integrated into our bigcommerce store. We are after someone that can custom code and integrate a shipping calculator. The shipping is based on weight in the backend. We would like the shipping calculator to be placed on the product page. This will be an easy job for an experienced programmer with the right skills and is experienced with BigCommerce. In your response please add the following quote: I can jig it! Failure to do so means we will not look at your application. Also provide an estimate how long it would take you to complete the project and when you can have the job completed by. We look forward to working successfully with you.