Step 1: Part Count
dark grey 45
Step 2: Sorter Tray
It is very similar to the rod sorter, pay attention to the holes. It is six yellow connectors wide.
Step 3: Case Pt. 1
There's not much to be said here....just follow the image notes.
Step 4: Case Pt. 2
There's not much to be said here....just follow the image notes....again. Oh sorry for the rotated pics :(
Step 5: Put It Together
The sorter tray attaches on the grey (and one red) connectors. The tray is meant to be slanted.