I packed everything except the covers for the output transistors which are still here, all else was sent with the amp. The knobs are bubble wrapped in a ziplock bag, have a look between the heatsink fins.
I know the power switch is not original, it was installed before I got the amp in 1990, but it is looked heavy duty, always worked and seems well attached to the face plate.
The rotary level controls are attached to the coaxial leads that I tucked inside the chassis. The meter switch should be still attached to it's leads going to the meter board.