Very good posts and ideas, actually I jumped into the depth of the Blender guides and tutorials so slowed down in posting, maybe next year will be able to do something

Egg thanks for the .xar file will download from home, I always found challenging to turn/rotate extrudes which have different width in un-extruded state, because somehow at the extrude slightly they need different angles to fit/place over each other.

Theinonen also thanks for your .xar