Depressed Amplifier Chassis - K5881

[gbjbatlh]

Hello All - I have recently bought a K5881 with the central, power supply transformer sitting at a "jaunty angle". I suspect at sometime in the life of the amplifier a friendly courier has put down (dropped) the amplifier with no care of the consequences. Result? - the considerable weight of the power supply transformer has deformed to the top plate of the chassis causing it to sit at an angle. All seems to operate as normal, this is not a new injury.
My question(s) - the best way to straighten the top plate and any recommendations on how to strengthen the top plate? OR - should I leave it be?
Grateful thanks for any suggestions, recommendations and help.