Yep, just checked the 'normal' Freeway layouts and their 'HH Coil Split 2V2T' (first diagram, from here) is basically what you want, just with only a volume. So, that'll work.

If you want to have combinations with one pickup split but the other not etc, you could do that with the Freeway instead of splitting both. Or, just go with a couple of mini-toggles and then you can split whichever one you want in any combination you want. It's up to you.