Pearly Gates plus
It will probably work fine. The PG+ does, and it's not terribly different than the WLH. The difference in tone between 250K and 500K is not huge anyhow. But you could switch over to 500K pots. It won't have a dramatic effect on the single coils, it will make it so your humbucker has a bit more zing, and you can always slightly roll down the neck and middle tone pots if the single coils are too trebly with the 500Ks. Reducing excessive treble is easy. Adding it when it is not there to begin with is impossible.