The drawers are finally in though I made a measuring mistake - position of drawer four. Hopefully I can hide it with the drawer fronts. Otherwise I will need to lower the case drawer slides and cut down the bottom drawer.
Next weekend I plan on adding the side and back panels to stabilize the cabinet so it won't rack. Then the drawer fronts followed by the fun stuff - making generic dividers so I can start placing the Plastruct stuff in the cabinet.