I'm a guy with small-ish hands, and thought wide-thin necks were what I "needed". But to be honest, I'm comfortable playing any of the PRS neck profiles - the 594 Pattern Vintage might be the most comfortable yet. So you might want to go play some PRS guitars at a local store to see if the "wide thin" requirement really is a show-stopper.
If you can eliminate that, there are a lot more options for you.
Also: my wife is smaller than me, and plays 24-fret PRS basses with 34" scale length, and I'm not a big guy and I play PRS's 27.7" scale length baritones and 26.5" seven-stringers. So I also wouldn't get too wound around the scale length of a guitar, though the vast majority of PRS (six string) guitars are 25" or less.
I don't recall seeing that as a requirement/desire? The OP desires a natural-looking transparent/translucent finish to the wood - i.e. not opaque black, as best I understand:
"No paint on the back or neck (natural/stained finish)"