I was wondering what happened to that boat!
I'm glad it's going to get out on the water. I own the bright red boat that is at Shilshole.
I ordered a new masthead crane but it's been so long since I put it together I don't recall how it all went together. Can you copy how the old one was attached? I'm guessing not otherwise you'd have that baby up by now. I was amazed at how many different little stainless connecting pieces they have at West Marine. You may need to take out a second mortgage to purchase them but they do have quite a selection.
I used a cool stainless piece for the forestay. It was shaped like an "H" so the end of the stay slipped between the top portion of the "H" and the deck fitting slipped between the lower portion of the "H".
Maybe something like that?