For the control rope you did not allow for the pulleys. They would raise the line and make it a tripping hazard. It would be better to run the line through the deck and then along the ceiling of the lower deck next to the hull and then bring it up when it gets far enough back to pull the tiller effectively.
We aren't all that concerned with tripping hazards in the tall ship community. We have a similar tripping hazard attached to our helm on Pilgrim. Generally after a few days on the vessel you know where everything to avoid is, anyway.