Help/info for Twitch Streaming...

[Jaygo]

Essentially what I'm working with here is 8 computers, all have 9700's and 2080 SUPER's. They're all on a gig circuit and a backup gig as a fail-safe as well. Needless to say I have plenty of room to work with in terms of hardware and bandwith. What I need is settings for a 1080p stream at 60fps. My current understanding is NVENC encoding with CBR and a bitrate of around 6000-7000 should do pretty well, although any person without a relatively good internet connection will struggle to watch the stream since the account won't be partnered (viewers can't change the resolution at will). Are there any other downsides to this? 720p isn't an option, although 900p may be on the table with good reasoning. 

Any links, youtubers or any other type of information to read up on this would be very helpful, need to learn everything I can about it. 

[Syaoran]

https://stream.twitch.tv/encoding/

 

https://help.twitch.tv/s/article/broadcast-requirements?language=en_US