These may fit your requirements, they are comfortable and with the exchange rate will be within budget if shipping is not too $$$: https://www.blackhorseclothing.com.au/collections/breeches-jodphurs/products/song-bamboo-blend-jodds-new-colour-silver
You could ask about shipping, the company is responsive to questions (but half of Australia is in lockdown so shipping may take a while!)