Since I know absolutely nothing about pickups for this type of guitar, I must pass along a suggestion from Paul Languedoc, builder of the fine instruments played by the band Phish, specifically Trey, whom if I was building a semi hollow, or hollow guitar would take advise from on building......
http://www.languedocguitars.com/faq/
Straight from his FAQ about what pickups he puts in all his guitars and why.
"Why do you use the pickups you use?
Pickups are like microphones. They can't make sound, only pick up what's there, get it? The Seymour Duncan PAF '59s are copies of the classic Les Paul humbuckers, nicely made, with alnico magnets and not too much wire, so they're fairly low impedance, and they just seem to work well with my guitars. I modify them slightly so that in single-coil mode with both pickups on they are hum-canceling, and I also pot them. And yes, they are the same pickups in Trey's guitars. If someone had a strong preference for something else I'd be glad to accommodate."