Does this location sell beer (in the main grocery store, not asking about the wine and spirits location)? If so, what brands?

I'm not sure about the brands but, any beer sold at the main grocery is going to be non alcoholic or 3.2%. The wine and spirits location is literally right across the parking lot so if you are looking for something specific, that's a better bet.

No seperate building in same area

Yes, quality beer of most brands is sold here.

Yes all major brands are sold