If you really want the pre-CBS tone, I say buy some pre-CBS P/Us. If you want close to that tone, CS, Roadworn, and SD Antiquties (and some others) will do the job, like others have mentioned.
In my own experience, the newer replica P/Us don't sit in the mix exactly like real pre-CBS P/Us do. They take a lot more EQing on the amp to sit in that happy spot, and never quite get there 100% - more like 95% IMO. There's just something to how pre-CBS P/Us retain this brightness without giving up the lows (and vise-versa). At least that's how my ears think.