Bill,
Did you ever get [url=https://drive.google.com/open?id=0B-9lC78gYedORUg4MFZIV1hybHM%5Dsockaudio.py...] to start up? Since I don't think it's been committed to the git repo yet, you're either going to need the modified rx.py than knows how to start it itself, or you'll need the [url=https://drive.google.com/open?id=0B-9lC78gYedObE5BaFlmNkpQc00%5Daudio.py%5B/...] front end which makes sockaudio.py behave like netcat | aplay and lets you handle the audio playback remotely.
I'm currently using a RPi3 with local sockaudio to feed a darkice stream to Broadcastify. It works *almost* as well as an old i5 laptop if have (running the same codebase) feeding a different set of tgids to Broadcastify.