…I second Floosmoor Station! (For the beer, that is.) Depending on the time available to the OP., it can be very accessible from downtown, but, especially on Sunday, not so convenient a return trip. Sunday trains don’t run frequently.
But it’s a simple trip: Hop on the electric line south out of downtown, and the brewpub is at the stop in flossmoor…
(Edit…Um, I see you’ve already made tour trip. I’ll read about it now.)
Hi, I’ve read about your trip here, and am pleased that you liked our city so much.
Please come again, in early Feb. Stick around a few weeks. You know, just to see how much you really love it! 
Nice trip report. And for those who haven’t, try Green Line from our friends @ Goose Island. Tap only I believe.
Glad to hear you had a fun visit scabpicker! Yep, Chicago is a beautiful city with a whole lot of great food, drink and plenty to see and do. The winters are an experience and take getting used to. They can also be incredibly beautiful as well so don’t let that scare you.