This has been discussed already !!!
You can't fully install Sailfish on N9 under windows !
That's not true. I did it. Well, all except for extracting the moslo kernel from the rpm, but he's got that from somewhere else. Everything you can't do in windows you can do on the device itself.
Does developer-mode include ssh and fingerterm? I would have thought so.
Also, would inclusion of /etc/passwd allow us to have root access in sailfish or would we run into boot issues? I will try it when I have the time as it would save having to chroot into harmattan just to gain root access on harmattan.