Hi Jessica, I went in and edited your post to add the image in. You just forgot to hit the insert image button
I know the brand and can’t recommend it. Rabbits actually should not have a mixed muesli type food. Often there are seeds which aren’t good for rabbits and it can lead to selective feeding. You are better off feeding a plain pellet. I’m not sure what your budget is but Vetafarm sells larger bags at a decent price and is a quality food. If you want much larger bulk bags I’d look at Jackrabbit or possibly Barastoc pellets. They are more for raising/ growing rabbits but with such a limited amount fed it’s not an issue
I’m sure you know of Oxbow and Burgess excel foods. Both are great quality but much more pricey and I’ve not seen the bulk bags in Australia. I hope that helps 
Edit: Also look for a pellet that has a bare minimum of 15% fibre. 20%+ is ideal but not always possible with Aus brands.