That particular model of Westinghouse wall oven is excellent. My aunt had one, and we also had one for about a year in the house we were living in when my Dad died in 1962. Ours was anodized copper, but other wise exactly the same as the SS model. They had a larger capacity than most other wall oven in the 50’s. They baked, broiled and roasted beautifully.
The stove top isn’t as old as the oven, if it was it would have the burner controls that change color for each heat. The DW is the same vintage as the oven though. And I agree, $800 seems like too much.
Eddie