I am actually leaving Saturday for a week to the Smokies and surrounding. I am taking the Vstrom and bought a half cover to be able to cover up my stereo equipment at night. The one I bought for my Vstar fits it well, but I don't have a trunk. They make the same one I have for a Goldwing (or bikes with trunks) that would probably work well. I will try to attach the links. And I like the half cover when traveling because it takes up less room in my bags.
Here are a couple:
http://www.motorcycle-superstore.com/3/13/117/36883/ITEM/Show-Chrome-Ultragard-Classic-Half-Cover.aspxhttp://www.motorcycle-superstore.com/3/13/117/1470/ITEM/Western-Power-Sports-Day-Motorcycle-Cover.aspx