if you want the real thing ... look anywhere there are instrument parts sold on-line (like the For sale forum here, eBay, etc ...)
or you could always get a neck from Warmoth like this one:
http://www.warmoth.com/showcase/sc_g...subMenuItem2=0
there are several of these currently listed in the Showcase
or this one, if you prefer black binding:
http://www.warmoth.com/showcase/sc_g...subMenuItem2=0
all the best,
R