Hi!
I have a suggestions, since you are so specific about your pickups choice and seem to have ears to back it up (great to read that someone listens that closely). My suggestion are to change guitars with the two pickups, move them to the other guitar to get a picture of what you are thinking then. The reason for this is to avoid chasing ghosts, meaning that the sound features you describe now might be in the guitar instead of the pickups.
The present, tight bass response might be from the guitar, so you get that even with the other
pickup (and meybe loose the searing, throaty top end high mids that you think it has now).
I would really recommend doing this before you go hunting, because what you hunt for might end up different from what you want now.
And also, build the new guitar, try it with the pickups you have now and then say "i want the bla bla from the invader but less this and that and this from the distortion but less of that". Then you will be able to do a really good pickup selection.
Now it will only be random guessing.
What I'm saying are, one pickup might sound completely different in two different guitars (even if the guitar are the exact same model).
Good luck no mater what.
/Magnus
