Your one steep hill ( I've seen the pictures. ) is enough tp justify a small motor and battery like the conversions @PedalUma makes. I think Trek makes something like that, a proper lightweight road bike with an electric boost. Worth considering 🤔 maybe.
An internet legend says that Rodney Dangerfield's tombstone says " There goes the neighborhood ". That's hard to top, but you can do it, Dave ... in 20 or more years, please.
I live at the top of the highest hill in town and coming home I get the wind and the climb at the same time when I am already tired. Big battery suck if I can even keep it climbing...