Welcome to the forum! :D
Interesting post, I used to have a McCarty Korina (and a Mira Korina, now I think about it! :lol: ) and it was indeed a warm-sounding, resonant, middy sort of guitar so I have some idea of what your guitar may be like.
I'm quite surprised BKP recommended Crawlers, I owned a set some time ago and found them quite dark sounding (in a Les Paul copy), I would expect them (or at least the bridge pickup) to be bordering on muddy in an all-mahogany or all-korina guitar.
I've also owned an Abraxas neck pickup (I have the bridge too, in an HSS set but that's yet to be installed... :oops: :roll:). That was in a fairly similar guitar, a thin-bodied LP with no maple top. It is very similar to the Crawler neck - similar DC resistance, AIV magnet - but the Abraxas neck is just a little brighter, which I think would be the general view from those who've tried both.
I believe the Abraxas are considered more "open" than the Crawlers, both neck and bridge are AIV so they're quite sweet-sounding, no piercing treble. That could complement the natural tone of the korina quite nicely, or perhaps you could go with something more vintage for a slightly clearer tone. I don't think you should be venturing into the high-output end of the range unless you are a metalist!
So basically I'm agreeing with everything you've said, not very helpful really! Hopefully some of the guys who have more experience of the Abraxas will chip in.