cute William said-
"...I think these are the exact same tubs that are in the roto-rack models... "
ahh no, not by a long shot. The door seal is the same but the motor mounting holes are different, the top of the machine was expanded to make room for the third wash arm, and the mounting holes for the second level rack and wash arm are totally different from the roto-rack that mounts on the ceiling.
You couldn't even have a third level wash arm with a roto rack.
In my early career, I converted a roto rack machine to a mol 70s KM. Now THAT is plausible, but you have to fill in the holes on the top and drill new holes through the porecelain (something I did not have the expertise for) for the side wall rack supports, and the new holes for mounting the wash arm. (IT was my third Dishwasher)
We had a 1969 MOL KM roto-rack when I was growing up, and it wasn't rare to find coffee grounds and bits of ground up food residue on the tops of coffee cups.
Though, that could have been that the rack was prevented from turning. That was another thing with them, if the support wheels that the roto rack glides on, start to wear the rack can move from side to side allowing it to touch the walls, and that would prevent it turning and thus cleaning.
They are fun toys, as the most gimmicky appliances are, but in the hands of the uninitiated, and those recently escaped from an idiot's asylum (as most of our parents were in the 70s), they can leave lasting scars of mental fatigue.
My well meaning, but woefully unfortunate mother thought that the agitator in a washing machine was there to beat the clothes clean, (apparently similar to hanging a rug outside and beating the dirt out of it, as was done before vacuums) and not as it is intended -to simply stir the water at a fast pace allowing repeated roll-over of the clothing. sigh.
Anyway- "I don't think I have ever seen Coffee"
Wow, how our society is letting down our future generation. They should be teaching appliance colors in school.
Coffee was dark brown. This brochure, for the awkwardly redesigned 1978 KMs that lasted 2 years, shows it on the end.
And yeah, painting the 3 sides of your portable would be an option.
If it were me, I would remove the top, then remove the dishwasher from the cabinet (6 screws), and take the frame outside to hang, prep, and paint.
Or take the shell to a professional painter.
The shell, while bulky, is easy enough for one person to carry.
