Welcome to the Bunnings Workshop community @Tutt. It's fantastic to have you join us, and many thanks for your question on Richmond automatic gate openers.
Was there a particular style of gate opener that you were interested in? You might like to have a look through the Richmond range and let us know which one suits your needs. If you'd like to upload an image of your gate, we can make some suggestions. Once you make your selection, I would be more than happy to locate the installation instructions for you.
You'll find most of the Richmond auto gate openers available and in stock at Bunnings Arundel.