re: Harvest solar power in the KB?
If you can travel numerous light years and set up a colony in the Kuiper Belt, you can use sunlight for energy that just a few billion kilometers away.
And this article from New Scientist shows that at least one of the new big KBOs is cigar-shaped - sounds kinda insterstellar ark shape type craft vesselish to me.
http://www.newscientist.com/article.ns?id=dn7968
