ExtJS4 Documents Navigator Prototype

We are developing the next version of our current Documents Navigator. We are looking for a developer to implement a **Documents Navigator Prototype**, based on ExtJS4. The Documents Navigator is based on Google Documents, but very simplified. Please, check the attached image. The navigator has: 1. Systems Menu (top-left position) 2. User Menu (top-right position) 3. Search Box 4. New Document Tool 5. Sidebar Menu (Left Side) 6. Document Grid We've already implemented a JSON REST backendwith the API to support the mockup. Prototype must implement a the extjs4 MVC architecture, and work using Ext Direct to access We're going to evaluate previous works with extjs4 and REST integrations. (References for similar work) This first work is a prototype. **As a prototype, our priority is to validate if ExtJS4 can provide a solid working UI**. A second work may follow after a project prototype review, to refine the visual details.