Mate using Vertices

Hello again, world's newest Solidworks user here. I'm trying to mate the foot of a recycling bin to the body (a stainless steel hoop), but I'm having trouble. The body is just an extruded boss with a 2mm wall thickness. The foot, however, is a series of lofts made from single sketches then knitted together into a solid. On the body, I can easily select a vertex, but on the foot, I can only select faces and profile edges, not vertices. I was able to make the bottom face of the body and the top face inside the channel of the foot coincident, but I need to be able to use vertices to mate the two bodies together.

See the photo below for an image of what I'm talking about

Thoughts?

SolidworksAssemblies