Yes, it comes with a mount which is a plastic pipe with a pivot at the base. I'm sure you could mount the station itself on the same size pipe. The hardest thing would be getting it level. I'm not sure what diameter the pipe is but I would guess the outside diameter is around 1 in. The pipe in the picture is part of the base, and the unit sits over the end of the pipe. Hope this answers your question. 

Don't think so just put up a longer pole and take some hose claps and strap to the longer pole two should be more than enough I screwed mine to the peak of the house some time you can't get perfect north south pole is a good deal 

As long as the camera base has a standard 1/4 interface screw, the monopod could fit on the camera base.  

You still use the center pole with articulating ball and plate on top. Hole the curved metal piece on the bottom of the center pole and unscrew it, then the middle bar will slide up and out of the tripod and screw into the top of the monopod leg. 

Yes.