If you

understand what it is you’re replacing, what you’re replacing it with, and how to use the replacement

then you, almost by definition, are an advanced user.

A beginner should avoid these things, once you are far enough along to understand why you might want to replace one of these things, and form your own opinion on it, then go right ahead. But you’re no longer a beginner at that point.

Static IPs handed out by your local router are not dependent on having a static IP from your ISP. You do not need one to have the other. You can always have static IPs on your local network.

I’d certainly be interested in full details. This sounds like the best of all worlds of not needing to double reverse proxy, not hardcoding internal IPs in the config of a single reverse proxy on the VPS, and not losing the source IP.

Does this cause all traffic at the reverse proxy to appear to come from the source IP of your VPS or does it preserve the original source IP?

I’ve been working on setting up a similar setup myself and am trying to figure out specifically how to handle the forwarding on the VPS.