ok now I didn't expect that! my bad! You could always get one and if it sounds good get it potted, I would think they'd be a pickup repair shop that'd do that for you for a nominal charge, might be worth it if it'll give you the tone you want.
You might also want to think about the new SD P-rails, I have one in the neck of a guitar and it sounds nice and has a lot of P90 quality to it even in humbucking mode (and not to much output even though its got quite a high DC resistance). One warning though is that this pickup seems really really sensitive to how close it is to the strings, took me a while to get it set right.
I personally like the Kent Armstrong line of pickups, a lot cheeper than SD pickups and IMHO just as good. Their standard PAF is pretty hot (8.9K) and alnico, unfortunately their PAF plus is ceramic which might cause it be to bright for your needs. They do make their 'rocker' (15K) with an alnico magnet and I have one of these in a Les Paul so I can vouch for it being a decent pickup, tones of dynamics and it'll handle high gain well too. After that they're pickup line goes all high output metal pickups (which I think I have one of each of now ), the super distortion is quite nice actually, don't remember that being overly trebbly but I was using it as a neck pickup so its hard to say.
Lots of people say Bareknuckle are good but I've never played anything of theres so I can't give any personal insight.