I am not a fan of windows 10. I had to get it for a new laptop, but for all else, I will stick with windows 7 until I see some compelling reason to switch.
1. As a practical matter, you will not be able to connect until your internet adapter drivers are installed anyway. Be it wifi or lan.
I think you might as well allow windows 10 to do whatever it needs to do during the install.
2/3. So long as they work, I would not bother downloading the newest device drivers for the motherboard.
4. AntiSpyware Beacon is something I need to research. In the meantime, during windows 10 setup, disable about 10 options impacting telemetry:
http://www.pcworld.com/article/2971725/windows/how-to-reclaim-your-privacy-in-windows-10-piece-by-piece.html
5. Once all is running well, that would be the time to take a user checkpoint and disable further driver updates.
6. The only drivers you likely want to update will be graphics drivers. For them, I do not update unless I have a problem. Then, I download the new driver directly form Nvidia(or amd)
Even with windows 7, I have turned off automatic update checking.
It takes some resources to do the daily check.
Every once in a while, I check for updates when I am at a point where I can recover from a problematic update.
Antivirus is constantly checked.