That is like our first Mobile Maid. I really like the star pattern on the GE Textolite (their brand of plastic laminate) top. Funny how back then, we did not think about the noise from the machine or find it objectionable; it was washing dishes for us!
Do you or the owner have the other half of the detergent dispenser? After you repair the rust, you could scuff up the Plastisol in the sump and paint it with pink-tinted two part epoxy maybe.