That made me laugh -- such nice pictures too! And it's not just the handlebars, nothing is installed wrong, the front wheel is just flipped around 180deg (you can see from the cables and front brakes that it's been flipped CCW, so just turn it back 180deg clockwise)

I wonder if the seller is getting rid of the bike because since it fell over one time, it has become suddenly and strangely uncomfortable to ride? (and the front brake is always rubbing on the wheel because the cable is always being pulled)

Anyways, all those bikes look fine. I'd go for either the Cannondale or Trek Road, since they have racks installed already. In L.A. the fenders on the Trek 7000 won't do you much good (although some recommend fenders even in dry weather just for overall bike cleanliness and long-lastingness).

And don't apologize for dropping tons of CL links. Those of us that enjoy that kind of thing (myself included) will read and comment, those that don't will ignore.