If you want to dilute the anchors make more links, on less powerful PBN sites or web2.0 why to waste most powerful PBN sites? Though google mostly decide relevancy based upon your money site content but I have yet to see a proof that anchors as keywords completely lost the value as claimed.
Own servers, it requires a bit technical knowledge but I am an engineering graduate

Even if you know very less you can still host on own server using endless guides available on internet + some troubleshooting.
If you want to host multiple sites on aws there are two limitations. Resources and single IP. There are plenty of
free solutions to remove both these problems which I really cant disclose, however if you brainstorm a bit you will find answer to them.
I use nginx on server as its less resource intensive than apache and faster and never install that bulky and pricey cpanel, there are free alternative to it and also you can do it manually which drastically reduces the server load.
My network site pagespeed score (on same aws server) is better than one of my old money site on hostgator

You can see the difference between fooling the world by selling and testing themselves. I have created some scripts and mechanism to reduce the time to setup a server and host a site and I can host a site with wordpress installed on brand new hosting account in less than 30 seconds with my own free tools which is not possible with cpanel and this include creatig hosting account for that site.