Before I lost progress on the log I had posted some pictures and text on the kettle and furnace... due to whine I don't recall the text, but I will give you the pictures :
The diagrams of the kettle :
Parts for the internal structure :
... glued together :
Sheeting them with the skins :
Mind you ; I don't hammer them in place, I just use the small hammer as a weight on the parts while drying.