Get rid of that molex to sata adaptor, they catch fire. Molex to sata = lose your data

6 nodes? I assume you mean containers and not nodes. 6 nodes is overkill for any home user.

I’d suggest using prowlarr over Jackett since it integrates with sonarr and radarr.

I use hikvision and the quality is great in low light. I haven’t connected them to the internet since I use Frigate and Home Assistant to monitor the feeds.