Eneloop army here
Bodhrans-Not-Bombs
In flair.
shrug It works for me. The best headphones I've ever heard were Stax, but I have other priorities before I'd ever spend that much on cans. It'd be nice to get tube power again on the headphone system, but I'm pretty happy with the triode monoblock setup in the living room for now.
I mean, for the ghosts, you could try a less-haunted place...
Make it.
As a buyer, I prefer KEH. As a seller, I'd go with whatever the best net offer is.
Put together a studio if you have a spare room. Learn strobes and you'll never have to market yourself as a "natural light photographer".
On the hunt for some parabolic umbrellas that won't fall apart
Strobist gets recommended a lot to beginners, but they're more speedlight-oriented than the bigger strobes.
Honestly I'd start looking through the manufacturers recommended here and getting an idea for the tech. I personally don't mind setting power manually and running off of AC power, but others with more complicated setups might want to automate that or at least make it more streamlined. Some lights (like Paul Buff Einsteins) stay color-temp accurate throughout their whole f-stop range, this may or may not be important to you.
And in a turn of events, you see people using LED "hot lights" more than ever now with the rise of YouTube creators and vlogs. A world of difference from the old Lowel tungstens that would heat the studio on a winter day.
Are you looking for speedlights or bigger studio lighting?
If you've been out for that long, everything has gone to monolights instead of separate power packs and heads. Sinar Bron doesn't seem to have the same distribution it once had in the US, so Broncolor stuff seems difficult to find. Paul Buff makes a pretty good line that's more affordable than Profoto or most Elinchroms, the White Lightning line is as no-frills as you'll get today. Or you can get a fancy setup with built-in remotes, control everything from an app on your phone, etc.
I've done natural light headshots that I liked, but I got to specify the location and exact time I wanted, in a place I knew the lighting. You'll have none of this.
Conversely, if they'll pay you, rent two octaboxes or bounce umbrellas and a couple speedlights.
Big strobes.
Buy a Kodak disposable camera