it's on page one, his setup with the super-strong neo-D magnets on the little clamp. they'll permanently re-orient the magnets of the pickup the other way, at which point you'd reverse the wires of the pickup, too, and get RW/RP between the two pickups.
that works fine, but:
my point is that if you want to upgrade pickups in this bass, you have to go out and special order two neck pickup versions of whatever set you're looking for, then do this trick, then put up with less than good string spacing over the pickups, and then be stuck if you decide to sell them or put them in another bass, because they won't fit anything.
on top of that, there's a drawback to reversing the wires on a fender-type pickup; the coil will now have its hot end on the inside, wrapped against the magnets, which causes the magnet poles to be really noisy if you touch them.
i say just solve the problem the right way at the beginning and do the minor work it takes to make this otherwise decent bass fit normal pickup sets.