hey Brendan,

Stewmac has them:
http://www.stewmac.com/Pickups_and_E...or_P-Bass.html

I have also found kits on aliexpress for strat and tele, but I'm still not sure about the pole pieces.

http://www.aliexpress.com/item/Sell-...521208766.html

http://www.aliexpress.com/item/Sell-...250440861.html

http://www.aliexpress.com/item/Sell-...250432313.html

This pole-piece and magnet element of the whole pickup equation is a mystery to me. Many kits say that the pole pieces come un-magnetized and so this would have to be done too. To what strength? Who knows! Something else to ponder!

cheers,
Gav.