Back in june, I shared with you a plan to redevelop Manly Wharf with a high rise hotel. Here is a proposal from 1969 that called for a major transport interchange at Manly Wharf to replace the existing facilities. Apart from wharves and a bus terminal, they wanted also wanted helipads and a railway station. It mentions that the railway station would serve a heavy rail line running north from Manly to Newport.
Source: Anonymous. 1969. "Manly's next front door? Crisis on North Shore, says MLA ," The Daily Telegraph, March 18, 9.