The 12 volt hot end fan kit has been out of stock for a very long time. I have exchanged email will sales a few times and they have assured me the kit would be available “soon.” 
Honestly, I just need the wiring harness. I don’t want to buy connectors in bulk to build this thing up. I can source the fan and print the part. Could you just list the harness on the website for us “old” 12 volt guys?