Earlier quoted context omitted.
I can't find any section of that guide that talks about peering or whatever ISPs are supposed to do to connect to the broader internet. Do you see any step that explains this?
As a small ISP you don't peer - you just buy transit from a bigger ISP. So the basic steps are: 1. Buy a 1G/1G or 10G/10G whatever link to a building you own. 2. Resell that link in parts to customers. Or you can get yourself into a POP (point of presence) somewhere that multiple providers are also in, and get transit that way. Depends on where you are and what you can get access to.
(N.B. — This is what has worked well for the WISP I cofounded, but YMMV depending on headend infra).