C# / WPF - App Overhaul for iTunes Duplicate Cleaner

This is a fairly large project and we need a quality developer or development team for the job. Our app, Dupe Away (for Windows), needs to be hugely overhauled. The current version of Dupe Away for Windows is written in C# using Windows forms, but we want to have the app remade in WPF in addition to adding in a completely new UI/design and a few other features. Essentially, this job is getting the current windows version to look like the new Mac version that we've just finished up. Here's the site that shows what the current Window's version of the app looks like: [login to view URL] And in the last month, we've updated the Mac version to look like what is shown on the following page here: [login to view URL] The developers will need to work within our subversion repository and will have access to the old code for the windows version and any of the graphics that are being used for the Mac version. The work on this project is roughly equally distributed between creating/updating the backend of the app vs. the user interface, thus the developer(s) selected should have a strong experience with both databases and user interface development. The final project must be bug free and perform well even on very large iTunes databases. Assuming all goes well here, we are also looking to establish a working relationship at the end of this project and offer additional work on similar apps with the developer(s) of this one.