Branding of ownCloud window and mac application

Looking for someone to take the existing owncloud apps for Windows and Macintosh and brand them with a different logo. Also any references inside of the application need to be replaced with a different company name. This includes changing of the name of the folder used for syncing and sharing (which is currently called owncloud). In addition, there will be one change that must be made to the authentication piece of the app. An end user will type in their username and password, that username will be sent via an api call to determine an end users server location. This api call will return an array with all of the server locations where there is an end user with that username. The end user will select a server and it will be stored in the applications preferences for later use. This will also include changing the installers to include the new product name as well. the current windows and macintosh desktop applications are completely open source, therefore this is simply customization of the existing code.