The addition of the Monitor self-steering vane necessitated removing the ladder at the transom. As a result, it was time to consider another option for a boarding ladder.
So today I installed the genoa track-mounted Mystic Stainless boarding ladder, which I purchased from Scanmar International, the makers of the Monitor wind vane. Scanmar was very helpful in answering my questions and making sure I got the measurements right.
Haven’t yet actually tried it out for its intended purpose (too cold!), but it was a snap to install! Certainly one of the easier projects.