I had an old cedar strip canoe with a square stern that had been glassed fabric coated outside, and sloppy brush resin painted inside. I peeled back the outer glass skin (no canvas left) and found many of the strips were punky or broken. Likewise most of the ribs were bad.
Even though I live in the east where there are lots of ash trees, I had a hard time finding wood stock long enough. The cedar was easy. Long ash was almost impossible - until I stumbled on a place that made custom stairs and bannisters. They had planks they'd sell, and a custom trim plant ripped and milled what I needed. I bought my System West, microballons and glass fabric at a place that supplied the sail boat industry. Forget anywhere else, they won't have the right compounds, in the right sizes or for any reasonable price. The project languished through two moves, and then I realized I wasn't going to do it justice. I sold the project to a guy who had a better shop than me.
The lessons about boatbuilding. The boat builds you. We don't own these things, we just look after them for the next generation. If it is worth saving, it is worth repairing properly. But, good luck with your boat. It looks like it needs some attention to be loveable again.