My first rule on any buy is the condition of the frame: paint and overall condition. A quality paint job on a frameset costs more than most frames are worth.

I don't see good paint on any of these frames. So I would still pass. Skip the Carlton too since it has poor/mediocre paint.

I would avoid all the department store crap. If I was building a FG/SS, I would look for a nice Japanese bike. They take common, easy to find parts, they look good, there are plenty of them out there.