Thanks for that skp. My only suggestion after a look would be to name and group your components so it's easier to find your way around in the outliner window.
And many thanks for posting on Utube, I've been through a lot of the Utube sketchup videos and so nice to have some timberframing there.
here is one of my favorite sketchup videos, probably the farmer in me.
http://ca.youtube.com/watch?v=P0Daz4N-WLA