Well Dwayne @dillenbata3 ,
That’s what you’d think, but ALT+S ‘shrinks’ the Vertices along their (Vertex) Normals, so that wouldn’t work in this case.
And @Blendash , I thought that Omar’s suggestion to use Mirror Modifier was a great idea as well… at first….but when you try to model that piece, so that it Mirrors in a way, that you can use here, so that you’d only have to Move 1 Face and they others would follow, is quite challenging (if at all possible) and definitely more trouble than it’s worth, I’d say.