Lionel CZ And Stationsounds cars

I'm eventually going to purchase the add on cars for the Lionel CZ cars. I'd like to add a stationsounds car to the train. Originally, I thought about buying a SS Diner and just taking the electronics out of it and put it in one of the cars. Now, I'm thinking about just buying a SS Diner and swapping the shells from the CZ Car to the SS diner. Is this possible? Two photos and parts listing of each cars are included. SS Diner Parts CZ Car Parts Product numbers of the Two packs Are 6-25727 and 6-25731 SS diner name I don't care about as I will change the sound chip to this.