Out of curiosity, why? It may be none of my business (not that that's ever kept me from speaking my mind ), but my memories of those pickups aren't particularly fond ones. If you're worried about collector value, don't - there isn't any real collector's market for 70s Japanese imports. A really good one example might sell for $500+ if you can find the right buyer, but I can't see that replaced pickups would be seen as anything other than value added.
OTOH, if there's deep sentimental value involved, please ignore the previous paragraph.
I am considering that - Why I think the market will continue to rise is the real ones aren't cheap -
What would you drop in her I can always let the future buyer have this dead pickup get it fixed I guess-
(Like that queen - tom scholz of boston sound)
Thanks