For sale are the following (all are in used but good condition with a good amount of lead left):
Gibson 496R/500T set - 500T is 4 conductor, 496R is 2 conductor. $90 shipped for the set or $50 shipped each.
PRS Tremonti Treble - 4 conductor, sounds like a better balanced 500T. $55 shipped.
CONUS only. Paypal accepted. References are Leon and a few others on here plus aldog1330 on jcfonline/eBay or grimmchaos on talkbass.com.
Still available, prices lowered.