Friends had a Universal similar to #73 but had a built in dishwasher on the left side that didnt work. The knobs on #67 were the same as on my parents Kenmore but on left was a kerosene stinky burner and right was gas cooktop and oven.
That Tappan in # 80 is just like the one my parents bought in the early 60's ours had a griddle in the center, the side was storage for bread and all of our Cereal...held up well with 3 kids. lasted until the 90's when the side storage door kept falling off. That back panel lit up nice and bright at night !!! It was heavy !!! built like a tank !!! Looks like one of the knobs is a replacement though..... The broiler swung out to the right.... Might look into getting that.....