As you already found inside the documentation, creating remote root containers to a windows host is not currently supported and is not planned for the G.A. release.
You can still install manually the FuseESB/FuseMQ etc distribution to the remote windows host and join the cluster using the fabric:join command.
Regarding your second question, using a unix emulator could possibly get you further, but its not a recommendation.
Thanks a lot for the feedback about the bouncycastle jce provider.
Also just want to mention that the issue with the bouncycastle provider will be fixed for GA, so it shouldn't necessary to perform that step.