Finally got the time to create a sample with simplified classes of the current Gizmo used in Core Engine. It was quite a bit more than anticipated, with all engine utilities and tools used by the Gizmo and EditorComponent (the two main-classes for object movement) some parts had to be rewritten or completely removed.
The project has been published on CodePlex:
The project status is set to Beta. Everything should work out of the box. If you run into any issues using the code/sample, leave your comment here or use the Discussions tab on the CodePlex project page.
I hope you enjoy!