yep, some other cdn(don't remember which) added up to $100. better than 360 but still outside of a budget for daily use. as a one-off, sure, price is not that important. but if i would have just one user streaming once a day for 6h i'd go bankrupt in no time.
right now i am thinking i would simply do 1:1 streaming. so no transcoding. what you put out is what the audience gets. so if you stream with too high if a bitrate, tough luck. i could handle it with couple of cheap VPSs.
just for fun i checked cloudflare's streaming offer. 6h stream with 1000 viewers would cost 360$.