Help please - nex 3, 5R or 6? Then do I get the upgrade lens kits? In a pickle

Just to add to what I wrote before here is what Popular photograhy mag said about the nex6 The NEX6 showed very low or extremely low noise ratings at 1600 beating other cameras like the RebelT4i, EOS-1dx and Nikon D4, and moderate at 6400.  Now I'm not saying that makes it better than those cameras that's personal and there are other consideations like lens etc.. Although I don't base cameras on mag results it's a good tool in purchasing. If you have access the article is worthy to read. As you can see from my name I'm also a Nikon fanboy but I have no bias on great digital cameras just glad the camera manufactuers are fighting to get us that brings great products like the NEX6. So for me it was the NEX6. In addition I looked at all of them Sony, Oly and Pana