Well Done David.
Your post makes me want to go work on the boat. Unfortunately the cover is "anchored" with several inches of snow. I like the way you did the halyard, an important line for safety reasons. I have had the hardware for a few years and still have not drilled the holes: two deck organizers, two clutch sets, and a new winch for the other side. Cheek blocks bolted to the mast are one way. My H37C has bolts through the mast partners that can be replaced by eye bolts. I did one for my boom vang. My plan was to just attach blocks to those.Did you make a base or are the parts bolted directly to the deck? My boat already has inside handrails so I will look for another solution to "hiding" the hardware.