I have used Gibson Vintage Reissue strings, but it's definitely not a necessity. What I have found is that pure nickel strings don't create nearly the fret wear that steel strings or even nickel-plated steel do. That, to me, is important because I've worn through many guitars worth of frets before I switched to pure nickel and I
really don't want to refret my R0 (or any others). Gibson's Vintage Reissue strings are pure nickel. While pure nickel isn't as bright as NPS, I find they still sound great, maybe more "vintage" sounding, and they last longer, too. I've been using hex-core Pyramid for about 18 years now and have almost no fret wear. Difficult to impossible to find in the US, but Thomann ships them quickly and painlessly for a lot less than the one or two places that sell them here.
Switching to 11s probably won't require any changes to your bridge, maybe a small intonation adjustment, but nothing major. What will change, though, is your neck will likely need a minor truss rod adjustment because 11s will put more tension on the neck. It's not a big deal, but if you adjust it yourself, just remember, small steps.
As for humidity, as
@Budda said, 60% should be fine. It's the rapid changes in either humidity or temperature that can be damaging. As a general rule of thumb, if you're comfortable, your guitar's comfortable.
And yes, keep that thing where you can grab it and play it all the time! I think you're right that it will make you a better player. That sound and feel are just so inspirational! Here's a link to the stands I use around the house. Not convenient for taking to a jam, definitely not something I'd use for a gig, but around the house, they work well.
https://zitherusa.com/collections/guitar-stands