I don't find capacitor rotaries particularly useful, especially with high inductance pickups. With lower inductance models (ex the microcoil bridge position's 2.8H or lower), only about 2-3 well chosen capacitors provide useful or desirable variation.

I think the Q-tone is definitely the option to start with, perhaps with a push/pull to switch to a conventional tone control. A 2.4H neck position will give you more versatility. You can also use the filter without the cap/resistor to reduce the impedance to taste.

You might want to start there and see where you want to go with the wiring. I wouldn't combine two high inductance pickups in series, as the 8.4H combined between the 3.6/4.8H set will roll off an incredible amount of highend. If you want an "out of phase" option, look at Bill's half-out-of-phase wiring diagrams - it better retains the lows rather than cancelling out the common lower order harmonics between the positions.