Namespacing, sharing models, reusing controller in Ember

I have an Ember 1.10 application with api support for 2 models, Students and Parents, and basic CRUD setup for each model, as well as the ability to read and write messages to/from Students and Parents when visiting their respective /show pages.

I must create an Inbox in which the messages as well as all the other data on Students and Parents is available and must do so without the ability to change or add to the api (i.e. I can' create a Messages endpoint).

Basically, I need to keep the Student and Parent models and controllers as they are, but need to be able to access them from routes namespaced under the Inbox like so:

Students
  -inbox
  -index
  -edit
  -show
Parents
  -inbox
Inbox
  StudentInbox  <-- should use StudentsRoute and StudentsController
    -index
    -show
    -edit
  ParentInbox
    -index
    -show
    -edit

So that visiting /inbox/students/123 will be using the model defined in the StudentRoute and the actions and properties defined on the StudentController. The InboxStudentsShowRoute should similarly have access to the StudentsShowRoute and Controller.

Instead of copying and pasting the existing code from the Student and Parent routes and controllers, is there a way to proxy actions fired from templates under the Inbox namespace to the relevant models and controllers and maintain the ability to pass in params.

For example, passing in params like ?unread=true while on the InboxStudentsShow route would pass these to the StudentsShowRoute and Controller (and bubble appropriately to it's parent route and controller) or editing a Student from student/inbox/123/edit template would work just as it does on the student/123/edit template?

New to Ember and know there has to be a better way to reuse existing code and proxy actions from a namespace. Any advice would be greatly appreciated!