As I cannot find a suitable alternative jacket for my Wedding of River Song outfit (as River of course) I started looking for patterns. After weeks and weeks of searching I have finally found the perfect patterns! I thought I would share them just in case someone else is going through the same frustration I experienced.
Here is the link to the blog:
http://sewingplums.com/2012/02/11/peplum-jacket/ She provides links to the sites for the patterns as well.