I think if you get P-Rails, you'll end up re-doing the wiring. JP has the right idea, but P-Rails don't just need splits, they need coil selection, and you get a really good trick out of them by allowing series/parallel switching of the coils in each pickup (Parallel gives you a more PAF-y low-gain tone, series is hot, like hot-hot). If you don't mind making the same selection for both pickups, the Triple Shots scheme can be replicated on two DPDTs, leaving you two more switches for things like phase and series/parallel, giving you all the tricks of both wiring systems.
That said, buy the P-Rails even if they sit in the box for a while waiting for another guitar to put them in. They are amazing pickups, give you a lot of good sounds, you won't regret it even if you have to buy another guitar just to put them in.