Just came across these
Lion El' Jonson Model
DARK ANGELS PRIMARCH LION EL JONSON RARE OOP - eBay (item 330426628334 end time May-02-10 12:58:35 PDT)
THE EMPEROR OF MANKIND SPACE MARINE LEADER RARE OOP - eBay (item 330426629000 end time May-02-10 130:41 PDT)
WARMASTER HORUS LUPERCAL FIGURE RARE OOP - eBay (item 330426640342 end time May-02-10 13:35:38 PDT)
I did a google search and these aren't one of a kind models, does anybody know who made them and if they made more primarchs?