cPanel servers on the Private Cloud with Reverse Proxy and Load Balancing

Hello, I want to know the possibility of deploying several cPanel servers in Private Cloud, with Load balancing technology and a reverse proxy. Is it possible (on the port fowording side and NAT)? which architecture do you recommend (n-tier, ..)? which technology to recommend to use as a reverse proxy and load balancer (Nginx, Varnish, ...) what external backup solution to recommend (rsync, ...) This is a big topic to discuss. Thank you.