+1
The sound is not affected by which pickup is out of phase, only that a pickup is out of phase with another pickup. It wouldn't matter whether it was the bridge or neck pup that was out of phase. Also, If you are using just one pup, it will sound no differently in or out of phase (unless its out of phase with its self).
I would certainly draw a diagram for you, but I wouldn't know what the combinations you would want with your five way switch . (also, the way you wanted the phase switching to be done with the on-off-on switch isn't possible.)