Hey so I can talk on most of these points based on my 2010:
Roof wise I have thule feet and wingbar cross bars for easy c-channel use, for a note thule will reccomend their second-longest bar for the crosstour but I have the longest one they make and it works great. Speaking on the tilt angle topic, I have a Rhino-Rack pioneer rack (flat rack) to mount items on. The way I have everything setup it does tilt back ever so slightly but I have no issues with it. I probably could slide by rear crossbar forward to get rid of the tilt but have not bothered with it.
Hitch wise I have the same ecohitch hidden hitch 2" receive from etrailer.com. It was easy to install in less than a hour and I haven't had to deal with it since, it just hangs low so it hurts the rear clearance and departure angle of the car. I can't tell you anything about an enclosed cargo carrier on the hitch, just will warn you that anything out of that hitch makes the car very long.
Light bar wise, I have a 20" that I was going to install but now I'm going to sell it to get ditch lights attached with custom brackets from a buddy that makes brackets for Foresters and Crosstreks. Eventually might get smaller light bars to install into the grill but that's a bit out right now.