There should be holes in the metal flange parts at the sides of the plate.
You can put a metal rod through these holes to carry the plate or use these as fixings for straps.
Put the "reverb time" handwheel in the lowest reverb time
The damping plate is then closest to the metal plate and will dampen movement of the metal plate during transport.
Very important: remove the exciter magnet before transport !
And you can remove the amplifier box.
Just found this Dan Alexander link: http://danalexanderaudio.com/tips.html#Packing
, telling you in detail what I already suggested.