Re: humbucker question
Many acoustic soundhole pickups ARE humbuckers. The difference is, they are voiced to make the signal as "acoustic sounding" as possible - clear & bright, with less midrange than the usual electric humbucker. Acoustic fans still generally don't like this type of pup by itself, often calling it "too electric sounding".
You can try it, but don't be too hopeful that you'll get a great acoustic sound.