I think there's merit in taking Scott's wage and potentially spending less on an older keeper and using the rest elsewhere.
Problem is there aren't many older Australian keepers coming off contract at the end of the year. Redmayne is one, yes. Jack Duncan is too (but I don't think we should go back there), Matt Acton is as well....long shot option though - Dean Bouzanis? Though he is likely to stay in England while Catley is playing for Arsenal.