I have the same issue with you on the Led Zeppelin IV guitar tones! But I am tempted by a Black Dog now... Check out Tom's Black Dog clips in the players section (although that is in an SG).
Paul Kossoff - I'd be going Mules (for some of the studio tones), but more likely, personally, Stormy Mondays (that does the Fire & Water studio tones and the live sound on Free Live better than Mules in my hands). Mule has more of a rasp on the top, SMs are plenty bright/clear, but sweeter with it... then I can get all the rasp I want by the way I dig in. If you've got a light touch all the time, probably Mules would be better.
But you want to veer away from vintage... I've not played Abraxas, but often wondered. I have a feeling that this might be where you want to be...