Finished cutting out the new parts tonight and started laminating:
The new laminated parts do fit the plans exactly!
… and figuring out construction and working order. I think I’ll start with the fuse, then the tail feathers and end with the wings.
Still very excited about the size and the cool presence of the plane! (and the level of detail and attention to detail of the plans, they’re really self-explanatory and well-thought-out)