As posted in the other thread, I built a winch but it's not exactly what was in there- but it will need to suffice. I think it's pretty close anyhow.
The desk really doesn't work well between the aft columns because of the stairs. Unless the desk is within a foot or two of the aft pillar- but the desk isn't shown in that position on the Olympic telephone photo. The stairs pose a problem because if someone was working at the desk, it would be a "excuse me" for someone to pass through that corridor. My desk is 2'10"W x 2'4D. I figure a decent size for a ledger.
As a compromise I mounted the telegraphs on the center column, and the desk at the after end of the forward column.
I made a simple gauge board and put it above the desk. I think this will have to do. I like how it looks but maybe the telegraphs should be a bit smaller. The handwheel above the desk controls the ventilation fans up above: