Provided the wiring is home ran, and not daisy chained, it should work. You’ll have to double check the terminations at each wall plate jack as well, when you do crimp on RJ45s. And do yourself a favor while doing it… Label things, for easy identification later. Will help troubleshooting down the road, and any odd connections you may think up, or add.
Just put it on a seperate network, with no internet connection. Use a server as a passthrough, so you have control. Stay away from anythibg cloud based. Pretty easy stuff honestly.