Ron, I’ve never had a 1B. Came close last fall. It was cheap enough but it was in just terrible condition. Here are some pictures from my files of a later model. They may be of some help as far as what goes where and what is correct. Also a link to a video Lincoln Davis posted on the model you may fine interesting. https://youtu.be/d7IbC0GMKKg?si=_7QZVL4NEEKuSdn_
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.