I think I am relying too much on glue. I am thinking that the masts must have been only secured by the Stays (and their weight). And so the rigging of the Stays would be crucial to the instillation of the masts? And that is a question for the community! Because I don't know and I would LOVE to learn more.
So, were the masts on these boats only held in place by the Stays? And, if so, I would assume Stays would change tension (even if tarred) over time. And would be needed to be re-tensioned though the deadeyes?
M.