great job that looks awesome! I have an 05 so it already has a rack. Have you tried the 2 up seat yet? I have been debating on getting one but have heard bad things about them putting to much weight over the rear axle making the machine unstable. I'd hate to put my kids in unnecessary risk. The oldest is to big to sit in front of me now haha.
Its not too bad but my boy only weighs about 50 lbs so its still pretty stable with him on...never had a full size adult on it yet. I don't do any hard and rough riding with the boy on anyways...just some easy trails.
I'm down in southwestern ontario near Sarnia...its right on the canadian/U.S border. I ride in Michigan quite a bit.