Yeah, I kept the split coil. Both volume controls and the tone control are 500k audio taper pots, so all I had to do is move one of the volume pots with the push pull switch to the tone location and rewire it accordingly.
I did make it a bit more complicated as I had trouble removing the factor press fit knobs and bunged them up, so I ended up replacing both pots with identical 500k audio push pull pots, but with solid shafts. I also replaced the damaged knobs with black set screw knobs from
stew Mac.
It ended up being a bit of work as I ultimately replaced all the wiring and electronics except the pickups, but I really prefer the single volume control and pickup switch setup.