KDS-58 Questions
Looks pretty good overall, it only shows light signs of being used with hard water and or too little or cheap detergent. Unfortunately the mineral deposits damage and ware out the seals much faster like the slight leakage that you see at the DD seals. The DD Bi-Metals did not have cardboard covers on the portable DWs because the portables came from the factory with metal front panels installed unlike the built in models where these electrically live parts would have been exposed before the optional front panels got installed in some cases, UL made them install the cardboard guards on BI models.
You diffidently should replace the main pump shaft seal if you plan to use this machine often as this can save the main motor from damage from water leaks as well as many other parts under the machine, although one good thing about leaks on a portable DW is that you usually are aware of them much sooner if you are moving the DW each time it is used when you see the small puddles it leaves on the floor, and you can repair them before the leak ruins the motor etc.