After some thought and experimentation, I will film the recital, probably tomorrow night, and stream it as if live. That way there will be an extant copy post-stream.
There are other reasons for this. The internet upload speed where I live (not truly rural but far from updated internet services) is truly appalling and I am skeptical that there is any chance of me being able to stream live and maintain any decent quality of video feed. Secondly, if I stream live, I don't currently have any ability to merge in realtime the decent quality audio I'd get from my mics and with the camphone video: I'm led to believe this can be done, but obviously this whole concept is one that has only very recently come to mind and I'd rather do a recital now than investing time and money in something I'm not yet literate in, maybe that can come later.
I see a few famous musicians doing this and I will be looking into this, but in the meantime my internet upload speed is a major issue (put it this way, if a video is 5 mins long, it takes a lot longer than 5 mins to upload!) and I'll do it in a manner I know is going to work!