Thank you for the cat6a recommendation. I was not trying to state this as something needs to be a "great improvement" nor am I looking for only recommendations that have a certain return value in mind. I recognize most "tech" things won't be taken into consideration for resale nor will I probably stumble into a tech person who would appreciate and pay extra for the value. Ducting would involve HVAC as it's something I'm familiar with and wouldn't be an issue.
I wasn't trying to get into a financial debate with housing and never said how long I've resided at this house but I can see how you would assume that from my post. I only stated the remaining years I have as a time-limit for any recommendations (can't wait around for household fusion to come available :P /s). Think of it as a fun hobby/side-project I'm doing involving the Tech that will give me a stepping stone for familiarity and exposure to how I eventually want to do a "forever" home I'll rot away in. I imagine there are plenty of projects/ideas out there I'm missing because I always run across something fun and new (like stair lighting with sensors and programmable modes).
The architectural design and remodeling parts involving financials is a whole separate category and has been my jam for decades so I'm not worried about that (dilapidated houses call to me and I've always answered so they can be lived in again). 3 years is plenty of time if you're qualified and have the expertise, I've already spent considerable time working on this property so don't worry too much about it. This is simply a "what do we want to do with the rest of our time here and improving the house that has shown us love" scenario. I do appreciate your comment though, I realize none of this is really special and helps tamp down my enthusiasm since I always tend to get carried away. The weather monitoring is an apt example, I never liked the prepackaged setups so had plans saved to build my own. That's something that will probably be better suited for the next home.
That's beautiful and didn't cross my mind. I've done solar installs so my mind always just thinks of that type of battery bank for my needs, that's definitely a viable alternative that I could tie into the cctv system for continuous security as well without adding extra systems. I've only had a small "pc" UPS that crapped out on me years ago but I see they're scalable so I will entertain myself looking at some specs while pondering.