The Painkiller seems pretty exciting indeed ! I mean, in that range of tone your looking for.
As for the J50BC+Je1000, there's one place like always, eBay :)
You can get a j50BC for around 40$, they come up very often.
But, for the Je1000, that's a different story... they are quite rare... and sometimes you can get them for around 30-40$ too.
But i think it'll be far more interesting for you to try to duplicate its sound with BKP, the quality is sooo better than any others production pickups, it's almost scary 8)
Again, if you do not want to wait for the possible Painkiller, get yourself the Miracle Man, it will do the trick just fine.